Rac, N. S. Soil Microorganisms and Plant growth.
Cita Chicago (17th ed.)Rac, N.S. Subba. Soil Microorganisms and Plant Growth.
Cita MLA (9th ed.)Rac, N.S. Subba. Soil Microorganisms and Plant Growth.
Atenció: Aquestes cites poden no estar 100% correctes.