APA (7th ed.) Zitazioa

BEAR, F. E. (1964). Chemistry of the Soil.: Firman E. Bear (2nd ed.). Oxfrord and IBH.

Chicago Style (17th ed.) Zitazioa

BEAR, Firman E. Chemistry of the Soil.: Firman E. Bear. 2nd ed. New Delhi: Oxfrord and IBH, 1964.

MLA (9th ed.) Zitazioa

BEAR, Firman E. Chemistry of the Soil.: Firman E. Bear. 2nd ed. Oxfrord and IBH, 1964.