APA aipamena

Ford, R. E. (1999). GeoSystems today: An interactive casebook. New York: John Wiley & Sons.

Chicago Style aipamena

Ford, Robert E. GeoSystems Today: An Interactive Casebook. New York: John Wiley & Sons, 1999.

MLA aipamena

Ford, Robert E. GeoSystems Today: An Interactive Casebook. New York: John Wiley & Sons, 1999.

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