APA (7th ed.) Citation

Birdsall, S. S., & Florin, J. W. (1992). Outline of American geography: Regional landscapes of the United States. Offfice of International Information Programs, U.S. Department of State.

Chicago Style (17th ed.) Citation

Birdsall, Stephen S., and John William Florin. Outline of American Geography: Regional Landscapes of the United States. [Washington, D.C.]: Offfice of International Information Programs, U.S. Department of State, 1992.

MLA (9th ed.) Citation

Birdsall, Stephen S., and John William Florin. Outline of American Geography: Regional Landscapes of the United States. Offfice of International Information Programs, U.S. Department of State, 1992.