TY  - BOOK
AU  - Gupta, P.K.
TI  - Handbook of soil, fertilizer and manure
U1  - 631.4 G96H 
PY  - 2000///
CY  - Bikaner
PB  - Agro Botanica
KW  - SOIL SCIENCE
KW  - FERTILIZERS AND MANURES
ER  -