TY  - BOOK
AU  - Tisdale,Samuel L.
AU  - Nelson ,Werner L  .
AU  - Beaton,James D  .
TI  - Soil fertility and fertilizers / 
SN  - 8120309758
U1  - 631.422 
PY  - 2002///
CY  - New Delhi : 
PB  - Prentice Hall of India , 
KW  - SOIL FERTILITY
N1  - NULL
ER  -