TY  - BOOK
AU  - Tandon,H.L.S.,ed.
TI  - Nitrogen research and crop production
U1  - 631.84 N6 
PY  - 1996///
CY  - New Delhi
PB  - FDCO
KW  - H.L.S.Tandon
KW  - Fertilisers,Soil science
ER  -