TY  - BOOK
AU  - Tisdale, Samuel L.
TI  - Soil fertility and fertilizers
U1  - KVKFZ 631.8 S60 
PY  - 2002///
CY  - New Delhi
PB  - Prentice Hall of India
KW  - FERTILIZERS AND MANURES
KW  - SOIL FERTILITY
ER  -