America's wonderlands;
the scenic national parks and monuments of the United States.

APA Citation

National Geographic Book Service., Beard, D. B. (1966). America's wonderlands: the scenic national parks and monuments of the United States. New enl. ed. Washington: National Geographic Society.

MLA Citation

National Geographic Book Service, and Daniel B Beard. America's Wonderlands: the Scenic National Parks And Monuments of the United States. New enl. ed. Washington: National Geographic Society, 1966.

Warning: These citations may not always be complete (especially for serials).