Cita APA (7a ed.)

Short, J. R. (1993). An introduction to political geography (2nd ed.). Routledge.

Cita Chicago Style (17a ed.)

Short, John R. An Introduction to Political Geography. 2nd ed. London ; New York: Routledge, 1993.

Cita MLA (9a ed.)

Short, John R. An Introduction to Political Geography. 2nd ed. Routledge, 1993.