TY  - BOOK
AU  - Jackson,M.L.
TI  - Soil chemical analysis : 
SN  - 978 81 926860 2 8
U1  - 631.41/J13s 22
PY  - 1985///
CY  - New Delhi.  
PB  - United Book
KW  - Soil chemistry.
KW  - Soil science
N1  - Includes index
ER  -