Παραπομπή APA

Getis, A., Getis, J., Fellmann, J. D., Getis, V. L., & Kaplan, D. H. (2008). Introduction to geography (11th ed.). Boston: McGraw-Hill Higher Education.

Παραπομπή Chicago Style

Getis, Arthur, Judith Getis, Jerome D. Fellmann, Victoria L. Getis, and David H. Kaplan. Introduction to Geography. 11th ed. Boston: McGraw-Hill Higher Education, 2008.

Παραπομπή MLA

Getis, Arthur, et al. Introduction to Geography. 11th ed. Boston: McGraw-Hill Higher Education, 2008.

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