| Call Number (LC) | Title | Results |
|---|---|---|
| I 29.2:D 36 | A guide to American defenders of land, sea & sky : a resource for teachers, parents, and other educators | 1 |
| I 29.2:D 36/2 | American defenders of land, sea & sky | 1 |
| I 29.2:D 37/4 | Draft general management plan, environmental assessment : Delaware Water Gap National Recreation Area and Middle Delaware National Scenic and Recreational River : Sussex and Warren Counties, New Jersey, Monroe, Northampton, and Pike Counties, Pennsylvania | 1 |
| I 29.2:D 37/4/FINAL | General management plan : Delaware Water Gap National Recreation Area, Middle Delaware National Scenic and Recreational River, New Jersey and Pennsylvania | 1 |
| I 29.2:D 37/4/SUM. | General management plan : summary : Delaware Water Gap National Recreation Area, Middle Delaware National Scenic and Recreational River, New Jersey and Pennsylvania | 1 |
| I 29.2:D 37/4/sum./989 | General management plan : summary : Delaware Water Gap National Recreation Area, Middle Delaware National Scenic and Recreational River, New Jersey and Pennsylvania | 1 |
| I 29.2:D 37/6 | Delaware Water Gap National Recreation Area : Pennsylvania/New Jersey | 1 |
| I 29.2:D 37/7 | Lower Delaware River : national wild & scenic rivers study | 1 |
| I 29.2:D 37/8 | Archeological monitoring at Dingmans Launch Lower Boat Ramp, Delaware Water Gap National Recreation Area, Pike County, Pennsylvania | 1 |
| I 29.2:D 39/3 | Demography of grizzly bears in relation to hunting and mining development in northwestern Alaska | 1 |
| I 29.2:D 41/4 | Denali National Park and Preserve | 1 |
| I 29.2:D 41/5/V.- | Alternative transportation modes feasibility study | 1 |
| I 29.2:D 41/6 | Snapshots from the past : a roadside history of Denali National Park and Preserve | 1 |
| I 29.2:D 41/7/V.1-V.2 | Crown jewel of the north : an administrative history of Denali National Park and Preserve | 1 |
| I 29.2:D 43/3 | Denver Service Center | 1 |
| I 29.2:D 46/3 | Design process National Park Service | 1 |
| I 29.2:D 46/4 | Planning-design-construction sequence | 1 |
| I 29.2:D 49/2 | Devils Tower National Monument : statement for management | 1 |
| I 29.2:D 49/3 | Development by park | 1 |
| I 29.2:D 49/4 |
Standing witness : Devils Tower National Monument : a history Standing witness Devils Tower National Monument : a history |
2 |