APA (7th ed.) Citation

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