TY  - BOOK
AU  - Tiwari, K.N. , ed
AU  - Rattan, R.K., ed
TI  - Proceedings of the national workshop phosphorus in Indian agriculture : issues and strategies October 4, 2001 : New Delhi; Gurgaon
PY  - 2001///
CY  - Gurgaon
PB  - Potash and Phosphate Institute of Canada
ER  -