Cita APA (7a ed.)

Buol, S., Hole, F., & McCracken, R. (1980). Soil genesis and classification (2nd edition.). Iowa State University Press.

Cita Chicago Style (17a ed.)

Buol, S.W, F.D Hole, y R.J McCracken. Soil Genesis and Classification. 2nd edition. Ames: Iowa State University Press, 1980.

Cita MLA (8a ed.)

Buol, S.W, et al. Soil Genesis and Classification. 2nd edition. Iowa State University Press, 1980.