APA Style

Getis, A. et al (1991). Introduction to Geography / Arthur Getis, Judith Getis and Jerome Fellmann (3). Dubuque, Iowa: Wm.C. Brown Publishers.

MLA Style

Getis, Arthur. et al. "Introduction to Geography / Arthur Getis, Judith Getis and Jerome Fellmann". 3 Dubuque, Iowa: Wm.C. Brown Publishers, 1991. Textbook ห้องสมุดทั่วไป.