TY  - BOOK
AU  - Gupta, P. K. 
TI  - Handbook of Soil, Fertilizer and Manure 
SN  - 81-7754-152-8
U1  - 631.43  GUP-H 
PY  - 2003///
CY  - Jodhpur
PB  - Agrobios 
ER  -