Wheeler, J. H. (1964). A workbook and study guide for regional geography of the world. New York: Holt, Rinehart and Winston.
Παραπομπή Chicago StyleWheeler, Jesse H. A Workbook and Study Guide for Regional Geography of the World. New York: Holt, Rinehart and Winston, 1964.
Παραπομπή MLAWheeler, Jesse H. A Workbook and Study Guide for Regional Geography of the World. New York: Holt, Rinehart and Winston, 1964.
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