APA (7th ed.) Citation

National Park Foundation. (1986). The Complete guide to America's national parks: The official visitor's guide of the National Park Foundation : comprehensive information on all 372 of America's national park areas (1986-1987 ed.). The Foundation.

Chicago Style (17th ed.) Citation

National Park Foundation. The Complete Guide to America's National Parks: The Official Visitor's Guide of the National Park Foundation : Comprehensive Information on All 372 of America's National Park Areas. 1986-1987 ed. [Washington, D.C.]: The Foundation, 1986.

MLA (9th ed.) Citation

National Park Foundation. The Complete Guide to America's National Parks: The Official Visitor's Guide of the National Park Foundation : Comprehensive Information on All 372 of America's National Park Areas. 1986-1987 ed. The Foundation, 1986.