Cita APA

Norris, R. E., Harries, K. D., & Vitek, J. D. (1982). Geography: An introductory perspective. Columbus, Ohio: Ch. E. Merril.

Citación estilo Chicago

Norris, Robert E., Keith D. Harries, y John D. Vitek. Geography: An Introductory Perspective. Columbus, Ohio: Ch. E. Merril, 1982.

Cita MLA

Norris, Robert E., Keith D. Harries, y John D. Vitek. Geography: An Introductory Perspective. Columbus, Ohio: Ch. E. Merril, 1982.