TY  - BOOK
TI  - Nitrogen in Indian Agriculture (1961-70); a bibliography of N, NP, NK, NPK and other related factors
U1  - 016:631.84(540) 1961/70  L2;1 
PY  - 1972///
CY  - New Delhi
PB  - European Nitrogen Service Programme
KW  - Nitrogen fertilizers-India-Bibliography
ER  -