APA (7th ed.) Citation

Getis, J., Fellmann, J. D., & Gatis, A. (2009). Introduction to geography. Higher Education.

Chicago Style (17th ed.) Citation

Getis, Judith, Jerome D. Fellmann, and Athur Gatis. Introduction to Geography. Higher Education, 2009.

MLA (8th ed.) Citation

Getis, Judith, et al. Introduction to Geography. Higher Education, 2009.

Warning: These citations may not always be 100% accurate.