Cita APA (7a ed.)

Thompson, G. R., & Turk, J. (1995). Earth science and the environment (1995 version.). Saunders College Pub.

Cita Chicago Style (17a ed.)

Thompson, Graham R., y Jonathan Turk. Earth Science and the Environment. 1995 version. Fort Worth, Texas: Saunders College Pub, 1995.

Cita MLA (9a ed.)

Thompson, Graham R., y Jonathan Turk. Earth Science and the Environment. 1995 version. Saunders College Pub, 1995.