TY  - BOOK
AU  - Havlin John. L. Et. Al.James D.Beaton Werner L. Nelson Samuel L. Tisdale Havlin John.
TI  - Soil Fertility And Fertilizers : An Introduction To Nutrient Management / John L. Havlin [Et Al.]
SN  - 9789332570344 (Pbk)
PB  - New Delhi: Pearson C2016.
ER  -