TY  - BOOK
AU  - D.A. Korenkov
TI  - Nitrogen fertilizer
U1  - 631.84 
PY  - 1976///
CY  - New Delhi
PB  - Oxonian Press pvt Ltd
N1  - D.A. Korenkov: Nitrogen fertilizer.  New Delhi.  Oxonian Press pvt Ltd, 1976.--(631.84KOR)
ER  -