Παραπομπή APA

Boehm, R. G. (2002). Geography: The World and its people. New York: Glencoe/McGraw-Hill.

Παραπομπή Chicago Style

Boehm, Ricchard G. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 2002.

Παραπομπή MLA

Boehm, Ricchard G. Geography: The World and Its People. New York: Glencoe/McGraw-Hill, 2002.

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