Archana, S., & Shakhawat, K. (2013). Soil nutrient management for sustainable agriculture. Pointer.
Chicago Style aipamenaArchana, Singh, and Kapila Shakhawat. Soil Nutrient Management for Sustainable Agriculture. Jaipur: Pointer, 2013.
MLA aipamenaArchana, Singh, and Kapila Shakhawat. Soil Nutrient Management for Sustainable Agriculture. Pointer, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.