APA (7th ed.) Zitazioa

(1979). The encyclopedia of soil science. Dowden, Hutchinson & Ross.

Chicago Style (17th ed.) Zitazioa

The Encyclopedia of Soil Science. Strouds- burg, Penn.: Dowden, Hutchinson & Ross, 1979.

MLA (9th ed.) Zitazioa

The Encyclopedia of Soil Science. Dowden, Hutchinson & Ross, 1979.