Grewal, J., & Kanwar, J. (1990). Phosphorus fixation in Indian soils. Indian Council of Agricultural research.
Chicago Edition CitationGrewal, J.S, and J.S Kanwar. Phosphorus Fixation in Indian Soils. New Delhi: Indian Council of Agricultural research, 1990.
MLA Edition CitationGrewal, J.S, and J.S Kanwar. Phosphorus Fixation in Indian Soils. Indian Council of Agricultural research, 1990.
Warning: These citations may not always be 100% accurate.