Cita APA

Cohen, S. B. 1., & Cohen, S. B. 1. (2009). Geopolitics: The geography of international relations (2. edition.). Lanham: Rowman & Littlefield Publishers, Inc..

Citación estilo Chicago

Cohen, Saul Bernard 1925-, y Saul Bernard 1925- Cohen. Geopolitics: The Geography of International Relations. 2. edition. Lanham: Rowman & Littlefield Publishers, Inc., 2009.

Cita MLA

Cohen, Saul Bernard 1925-, y Saul Bernard 1925- Cohen. Geopolitics: The Geography of International Relations. 2. edition. Lanham: Rowman & Littlefield Publishers, Inc., 2009.