Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.