APA-Zitierstil (7. Ausg.)

Voices of America (Radio Program) & Cohen, S. B. (1967). Geography and the American environment. s.n.

Chicago-Zitierstil (17. Ausg.)

Voices of America (Radio Program) und Saul B. Cohen. Geography and the American Environment. Washington, D.C: s.n, 1967.

MLA-Zitierstil (9. Ausg.)

Voices of America (Radio Program) und Saul B. Cohen. Geography and the American Environment. s.n, 1967.