TY  - GEN
AU  - Gupta , P.K.
TI  - Handbook of soils, fertilizer and manure
SN  - 818716722
U1  - 631.4 
PY  - 2000///
CY  - Bikaner
PB  - Agrobotanica
KW  - SOIL FERTILIZERS MANURE
KW  - SOIL SCIENCE
ER  -