TY  - BOOK
AU  - Lal, L,
TI  - Nitrogen Biofertilizers
SN  - 8185680892
U1  - 631 
PY  - 2004///
CY  - Udaipur
PB  - Agrotech Publishing
KW  - Nitrogen Biofertilizers
KW  - Techniques, equipment & materials
ER  -