APA aipamena

Christopherson, R. W. (2015). Geosystems: An introduction to physical geography. Harlow, England: Pearson Education Limited.

Chicago Style aipamena

Christopherson, Robert W. Geosystems: An Introduction to Physical Geography. Harlow, England: Pearson Education Limited, 2015.

MLA aipamena

Christopherson, Robert W. Geosystems: An Introduction to Physical Geography. Harlow, England: Pearson Education Limited, 2015.

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