Cita APA (7a ed.)

Taylor, P. J., & Kearns, G. (1993). Political geography of the twentieth century: A global analysis (1st published.). Belhaven [etc.].

Cita Chicago Style (17a ed.)

Taylor, Peter J., y Gerard Kearns. Political Geography of the Twentieth Century: A Global Analysis. 1st published. London [etc.]: Belhaven [etc.], 1993.

Cita MLA (9a ed.)

Taylor, Peter J., y Gerard Kearns. Political Geography of the Twentieth Century: A Global Analysis. 1st published. Belhaven [etc.], 1993.