TY  - BOOK
AU  - Schwab, Glenn. O;.
AU  - Frevert,Richard K  .
TI  - Soil and water conservation engineering / 
SN  - 9788126521081
U1  - 631.45 
PY  - 2002///
CY  - London : 
PB  - John Wiley & Sons , 
N1  - 16547- Reference
ER  -