APA (7th ed.) Zitazioa

Buol, S. S., Southard, R. R., Graham, R. R., & McDaniel, P. P. (2003). Soil genesis and classification (fifth edition.).

Chicago Style (17th ed.) Zitazioa

Buol, S.W. Stanley, R.J. Randal Southard, R.C. Robert Graham, eta P.A. Paul McDaniel. Soil Genesis and Classification. fifth edition. 2003.

MLA (9th ed.) Zitazioa

Buol, S.W. Stanley, et al. Soil Genesis and Classification. fifth edition. 2003.