TY  - BOOK
AU  - European Nitrogen Service Programme, New Delhi - 24
AU  - European Nitrogen Service Programme, New Delhi - 24
TI  - Nitrogen in Indian Agriculture 1961-70: A Bibliography of N, NP, NK,NPK and other related factors
PY  - 1972///
PB  - EHSP, PDB 3547, New Delhi
ER  -