APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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