Showing 1 - 20 of 31 for search: 'Nilsen, Tor Helge', query time: 0.12s
by Nilsen, Tor Helge.
Published: U.S. G.P.O., 1984
Description: iv, 64 pages : illustrations ; 24 cm.
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by Nilsen, Tor Helge,
Published: United States Department of the Interior, Geological Survey, 1984
Description: 1 online resource (iv, 64 pages) : illustrations, maps.
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by Nilsen, Tor Helge,
Published: United States Department of the Interior, Geological Survey, 1973
Description: 1 online resource (iii, 23 pages) : illustrations.
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by Nilsen, Tor Helge,
Published: United States Department of the Interior, Geological Survey, 1975
Description: 1 online resource (iii, 18 pages, 2 pages of plates) : illustrations, maps (some color).
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by Nilsen, Tor Helge,
Published: United States Department of the Interior, Geological Survey, 1976
Description: 1 online resource (iv, 35 pages, 1 page of plates) : illustrations, maps (some color).
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by Nilsen, Tor Helge,
Published: U.S. Department of the Interior, U.S. Geological Survey, 1993
Description: 1 online resource (iv, 89 pages) : illustrations, maps (some color) + 1 plate.
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by Nilsen, Tor Helge,
Published: United States Department of the Interior, Geological Survey, 1979
Description: 1 online resource (viii, 96 pages) : illustrations, maps + 3 plates.
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by Nilsen, Tor Helge,
Published: United States Department of the Interior, Geological Survey, 1976
Description: 1 online resource (iii, 21 pages, 1 page of plates) : illustrations, maps (some color).
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by Nilsen, Tor Helge,
Published: United States Department of the Interior, Geological Survey, 1979
Description: 1 online resource (iii, 34 pages) : illustrations, maps.
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by Nilsen, Tor Helge,
Published: United States Department of the Interior, Geological Survey, 1975
Description: 1 online resource (iv, 64 pages) : illustrations, maps.
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by Nilsen, Tor Helge.
Published: U.S. Geological Survey, 1980
Description: 53 pages.
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by Nilsen, Tor Helge.
Published: U.S. Govt. Print. Off., 1976
Description: iii, 21 pages, 1 page of plates : illustrations, maps (1 color folded in pocket) ; 24 cm.
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by Nilsen, Tor Helge.
Published: U.S. G.P.O. ; For sale by Book and Open-File Report Sales, U.S. Geological Survey, 1993
Description: iv, 89 pages : illustrations, maps (some color) ; 28 cm.
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by Nilsen, Tor Helge.
Published: U.S. Govt. Print. Off. : for sale by the Supt. of Docs., U.S. Govt. Print Off., 1979
Description: iii, 34 pages : illustrations ; 29 cm.
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by Nilsen, Tor Helge.
Published: U.S. Govt. Print. Off., 1976
Description: iv, 35 pages, 1 page of plates : illustrations, maps (1 folded in pocket) ; 23 cm.
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by Nilsen, Tor Helge.
Published: U.S. Govt. Print. Off., 1973
Description: iii, 23 pages : illustrations ; 23 cm.
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by Nilsen, Tor Helge.
Published: Dept. of the Interior, U.S. Geological Survey ; For sale by the Books and Open-File Reports Section, 1987
Description: vii, 110 pages : illustrations, maps ; 29 cm.
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by Nilsen, Tor Helge.
Published: The Survey, 1972
Description: 1 map ; 45 x 85 cm + 1 supplementary sheet, folded in envelope 30 x 24 cm.
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by Nilsen, Tor Helge.
Published: U.S. Govt. Print. Off., 1975
Description: iii, 18 pages : illustrations (2 folded in pocket) ; 24 cm.
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by Nilsen, Tor Helge.
Published: The Survey, 1971
Description: 1 map ; 45 x 35 cm., on sheet 58 x 89 cm., folded in envelope 30 x 24 cm.
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