Short, J. R. (1993). An introduction to political geography. Routledge.
Cita Chicago (17th ed.)Short, John Rennie. An Introduction to Political Geography. London: Routledge, 1993.
Cita MLA (9th ed.)Short, John Rennie. An Introduction to Political Geography. Routledge, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.