Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Pulsipher, L. M., Goodwin, C. M., & Pulsipher, A. (2015). World regional geography concepts (3rd ed.). W.H. Freeman and Company, A Macmillan Education Company.
Chicago Style (17th ed.) Zitazioa
Pulsipher, Lydia M., Conrad M. Goodwin, eta Alex Pulsipher. World Regional Geography Concepts. 3rd ed. New York: W.H. Freeman and Company, A Macmillan Education Company, 2015.
MLA (9th ed.) Zitazioa
Pulsipher, Lydia M., et al. World Regional Geography Concepts. 3rd ed. W.H. Freeman and Company, A Macmillan Education Company, 2015.
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