Cita APA (7a ed.)

Cohen, S. B. (1967). Geography and the American environment. Voice of America, United States Information Agency.

Cita Chicago Style (17a ed.)

Cohen, Saul Bernard. Geography and the American Environment. Washington, D.C.: Voice of America, United States Information Agency, 1967.

Cita MLA (9a ed.)

Cohen, Saul Bernard. Geography and the American Environment. Voice of America, United States Information Agency, 1967.