Citazione Stile APA (7a Edizione)

Getis, A., Getis, J., & Fellmann, J. D. (2000). Introduction to geography. McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Getis, Arthur, Judith Getis, e Jerome D. Fellmann. Introduction to Geography. Boston: McGraw-Hill, 2000.

Citatione MLA (9a ed.)

Getis, Arthur, et al. Introduction to Geography. McGraw-Hill, 2000.