TY  - BOOK
AU  - Havlin, J.L.
AU  - Nelson, W.L.
ED  - Tisdale, S.L.
ED  - Beaton, J.D. 
TI  - Soil Fertility and Fertilizers An Introduction to Nutrient Management
SN  - 9788120348684
U1  - 631.42 8 th ed  
PY  - 2014///
CY  - Delhi 
PB  - PHI Learning Pvt. Ltd. 
ER  -