- SECRETS IN THE GRAND CANYON, ZION AND BRYCE CANYON NATIONAL PARKS by Lorraine Salem Tufts, 1992
- Yellowstone National Park: Historical & Descriptive by Hiram Martin Chittenden, 1949
- HANDBOOK TO THE FIORDLAND NATIONAL PARK SECOND EDITION by Gerard (edited) Hall-Jones, 1965
- A Full Color Photographic Tour of the Rocky Mountain National Park
- NATIONAL PARKS PORTFOLIO by Various, 1915
- Geyserland: Yellowstone National Park by W.H.) Union Pacific System Murray, 1926
- A Pictorial Study of Mammoth Cave and Mammoth Cave National Park by W. Ray Scott, 1951
- A Photographic and Comprehensive Guide to National Parkways: Bryce Canyon and Zion National Parks
- VASCULAR PLANTS OF GRAND TETON NATIONAL PARK, WYOMING. REVISED 1968. by R. Shaw, 1968
- MAMMALS OF BANFF NATIONAL PARK. by A. Banfield, 1958
- Ferns and Flowering Plants of Hawaii National Park. (Signed) by Otto, Degener, 1930
- Campaign For Petersburg National Park Service History by Richard Wayne Lykes, 1970
- Natures Heritage: Canada's National Parks by David Baird, 1967
- The National Parks: Lesser-Known Areas by Office of Public Affairs and the Division of Publications National Park Service, 1991
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