Cita APA

Birdsall, S. S. (1990). An outline of American geography. New York: United States Information Agency.

Chicago Style Citation

Birdsall, Stephen S. An Outline of American Geography. New York: United States Information Agency, 1990.

Cita MLA

Birdsall, Stephen S. An Outline of American Geography. New York: United States Information Agency, 1990.

Atenció: Aquestes cites poden no estar 100% correctes.