APA (7th ed.) Zitazioa

Smith, N. (2003). American empire: Roosevelt's geographer and the prelude to globalization. University of California Press.

Chicago Style (17th ed.) Zitazioa

Smith, Neil. American Empire: Roosevelt's Geographer and the Prelude to Globalization. Berkeley: University of California Press, 2003.

MLA (9th ed.) Zitazioa

Smith, Neil. American Empire: Roosevelt's Geographer and the Prelude to Globalization. University of California Press, 2003.