Cita APA (7th ed.)

Sanders, J. E., Anderson, A. H. J., & Carola, R. (1976). Physical geology. Harper & Row.

Cita Chicago (17th ed.)

Sanders, John E., Alan H. Jr Anderson, i Robert Carola. Physical Geology. New York: Harper & Row, 1976.

Cita MLA (9th ed.)

Sanders, John E., et al. Physical Geology. Harper & Row, 1976.