APA (7th ed.) Citation

Buol, S. W., Hole, F. D., & McCracken, R. J. (1973). Soil genesis and classification. Iowa State University Press.

Chicago Style (17th ed.) Citation

Buol, S. W., Francis Doan Hole, and R. J. McCracken. Soil Genesis and Classification. Ames: Iowa State University Press, 1973.

MLA (9th ed.) Citation

Buol, S. W., et al. Soil Genesis and Classification. Iowa State University Press, 1973.