Citazione Stile APA (7a Edizione)

GETIS, A., GETIS, J., BJELLAND, M., & FELLMANN, J. D. (2011). Introduction to geography. McGraw-Hill Book Company.

Citazione stile Chigago Style (17a edizione)

GETIS, Arthur, Judith GETIS, Mark BJELLAND, e Jerome D. FELLMANN. Introduction to Geography. McGraw-Hill Book Company, 2011.

Citatione MLA (9a ed.)

GETIS, Arthur, et al. Introduction to Geography. McGraw-Hill Book Company, 2011.