TY  - BOOK
AU  - Ashman, M.R / Puri, G.
TI  - Essential soil science : 
SN  - 0632048859
U1  - 631.4 ASH 
PY  - 2002///
CY  - India 
PB  - Blackwell Publishing 
KW  - A clear and concise introduction to soil science
ER  -