APA (7th ed.) Citation

Beus, S. S., & Morales, M. (1990). Grand Canyon geology / edited by Stanley S.Beus and Michael Morales. Oxford University Press.

Chicago Style (17th ed.) Citation

Beus, Stanley S., and Michael Morales. Grand Canyon Geology / Edited by Stanley S.Beus and Michael Morales. Oxford University Press, 1990.

MLA (9th ed.) Citation

Beus, Stanley S., and Michael Morales. Grand Canyon Geology / Edited by Stanley S.Beus and Michael Morales. Oxford University Press, 1990.

Warning: These citations may not always be 100% accurate.