TY  - GEN
AU  - Gupta , P.K.
TI  - A handbook of soil,fertilizer and manure
SN  - 8177541528
U1  - 631.4 
PY  - 1999///
CY  - Jodhpur
PB  - Agrobios(India)
KW  - SOIL SCIENCE
KW  - AGRICULTURE
ER  -