APA
Kanwar J. S. (., Katyal J. C. (., . (1997). Plant nutrient needs, supply, efficiency and policy issues: 2000-2025. New Delhi: National Academy of Agricultural Sciences.
Chicago
Kanwar J S (Ed.), Katyal J C (Ed.), . 1997. Plant nutrient needs, supply, efficiency and policy issues: 2000-2025. New Delhi: National Academy of Agricultural Sciences.
Harvard
Kanwar J. S. (., Katyal J. C. (., . (1997). Plant nutrient needs, supply, efficiency and policy issues: 2000-2025. New Delhi: National Academy of Agricultural Sciences.
MLA
Kanwar J S (Ed.), Katyal J C (Ed.), . Plant nutrient needs, supply, efficiency and policy issues: 2000-2025. New Delhi: National Academy of Agricultural Sciences. 1997.