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Institution
Collection
310
Gov Pub Electronic
254
Storage Gov Pub
141
Gov Pub Microfiche
45
Main Books 3rd Floor
3
New Books 1st Floor
2
Electronic Access
more ...
2
Gov Pub Ref 1st Floor
1
CO Gov Pub Electronic
1
Juv Coll 2nd Floor
1
Microfilm 2nd Floor
1
Ref Coll 1st Floor
1
Storage Books
1
Storage Microfiche
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Format
Subject
36
Geology
33
Water quality
31
Groundwater
25
Groundwater Pollution
21
Hydrogeology
21
Stream measurements
more ...
20
Groundwater flow
19
Maryland
18
Groundwater Quality
18
National parks and reserves
16
Oil spills
15
Geology, Stratigraphic
15
Historic sites
15
Water Pollution
14
Blackwater National Wildlife Refuge (Md.)
11
Antietam National Battlefield (Md.)
11
Environmental monitoring
11
Paleontology
11
Water-supply
10
Homes and haunts
10
Water consumption
9
Aberdeen Proving Ground (Md.)
9
Floods
9
Historic sites Law and legislation
9
History
9
Hydrology
9
Maryland History
8
Landscape protection
8
Water use
8
Wildlife refuges
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Author
146
Geological Survey (U.S.)
93
Geological Survey (U.S.),
36
U.S. Fish and Wildlife Service
30
Aberdeen Proving Ground (Md.). Environmental Conservation and Restoration Division
29
Damage Assessment, Remediation, and Restoration Program (U.S.)
27
United States. National Park Service
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22
Maryland. Department of the Environment
18
Maryland Geological Survey
18
Maryland. Department of Natural Resources
12
Educational Resources Information Center (U.S.)
10
National Institutes of Health (U.S.)
10
United States. Congress. House. Committee on Transportation and Infrastructure
10
United States. Congress. Senate. Committee on Energy and Natural Resources
9
Lorah, Michelle M.
9
United States. Congress. Senate. Committee on Energy and Natural Resources,
9
Wheeler, Judith C.
8
Maryland. Water Resources Administration
8
Tenbus, Frederick J.
8
United States. Environmental Protection Agency
7
Aberdeen Proving Ground (Md.). Office of Environmental Management
7
Goddard Space Flight Center
7
Phelan, Daniel J.
7
United States. National Park Service,
6
Aberdeen Proving Ground (Md.). Environmental Management Division
6
Delaware. Department of Transportation
6
Maryland. Department of Transportation
6
National Cancer Institute (U.S.)
6
National Institutes of Health (U.S.). Clinical Center
6
National Renewable Energy Laboratory (U.S.),
6
National Water-Quality Assessment Program (U.S.)
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Language
Genre
15
Biographies
11
Legislative materials
11
Technical reports
9
Autobiographies
9
Statistics
8
Case studies
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8
Handbooks and manuals
7
Legislative hearings
6
Guidebooks
4
Catalogs
4
Databases
4
Directories
4
Statutes and codes
3
Conference papers and proceedings
3
Maps
2
Bibliographies
2
Gazetteers
2
Literature
2
Longitudinal studies
2
Trivia and miscellanea
1
Activity books
1
Architectural drawings
1
Census data
1
Charters and articles of incorporation
1
Classifications
1
Congresses
1
Correspondence
1
Designs and plans
1
Diaries
1
Exhibition catalogs
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Literary Form
Era
8
19th century
7
1822-1913
6
Colonial period, ca. 1600-1775
6
Tertiary
5
1818-1895
5
Cretaceous
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4
Civil War, 1861-1865
4
Miocene
3
1908-1993
3
Pleistocene
3
Revolution, 1775-1783
2
18th century
2
1918-1996
2
Cambrian
2
To 1775
2
Triassic
2
War of 1812
1
1639-approximately 1703
1
1702-1782
1
1728-1786
1
1737-1832
1
1743-1787
1
1757?-1834
1
1771-1839
1
17th century
1
1805-1880
1
1807-1870
1
1816-1902
1
1821-1912
1
1838-1903
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Region
Maryland
73
Baltimore
62
Virginia
53
United States
44
Aberdeen Proving Ground
36
Bethesda
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35
Delaware
29
Pennsylvania
28
Washington (D.C.)
17
West Virginia
14
Blackwater National Wildlife Refuge (Md.)
14
Patuxent River
12
Antietam National Battlefield (Md.)
12
Patuxent River Watershed
11
Antietam National Battlefield
11
Blackwater National Wildlife Refuge
11
Montgomery County
11
New York (State)
11
Prince George's County
9
Aberdeen Proving Ground (Md.)
9
North Carolina
8
Anne Arundel County
8
Chesapeake and Ohio Canal National Historical Park
8
Greenbelt
8
New Jersey
7
Baltimore (Md.)
7
Chincoteague National Wildlife Refuge (Va. and Md.)
7
Monocacy National Battlefield (Md.)
7
Susquehanna River Watershed
6
Atlantic Coast
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Call Number
83
E - United States History
61
H - Social Science
49
K - Law
46
Q - Science
42
C - Historical Sciences
40
G - Geography, Anthropology, Recreation
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23
D - World History
22
A - General Works
22
F - General American History
16
T - Technology
10
N - Fine Arts
8
J - Political Science
7
V - Naval Science
4
P - Language and Literature
3
S - Agriculture
2
R - Medicine
1
B - Philosophy, Psychology, Religion
1
L - Education
1
Z - Library Science
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Year of Publication