APA (7th ed.) Zitazioa

Rac, N. S. Soil Microorganisms and Plant growth.

Chicago Style (17th ed.) Zitazioa

Rac, N.S. Subba. Soil Microorganisms and Plant Growth.

MLA (9th ed.) Zitazioa

Rac, N.S. Subba. Soil Microorganisms and Plant Growth.