Cita APA (7a ed.)
Weigert, H. W. (1957). Principles of Political Geography. Appleton-Century.
Cita estilo Chicago (17a ed.)
Weigert, Hans W. Principles of Political Geography. EUA: Appleton-Century, 1957.
Cita MLA (9a ed.)
Weigert, Hans W. Principles of Political Geography. Appleton-Century, 1957.
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