Cita APA (7a ed.)

Brown, H. E., Monnett, V. E., & Stovall, J. W. (1958). Introduction to geology. Ginn.

Cita Chicago Style (17a ed.)

Brown, Howard Elmer, Victor E. Monnett, y J. Willis Stovall. Introduction to Geology. Boston [etc.]: Ginn, 1958.

Cita MLA (9a ed.)

Brown, Howard Elmer, et al. Introduction to Geology. Ginn, 1958.