APA (7th ed.) Zitazioa
Craghan, M. (2003). Physical geography: A self-teaching guide. Wiley.
Chicago Style (17th ed.) Zitazioa
Craghan, Michael. Physical Geography: A Self-teaching Guide. Hoboken, NJ: Wiley, 2003.
MLA (9th ed.) Zitazioa
Craghan, Michael. Physical Geography: A Self-teaching Guide. Wiley, 2003.
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