TY  - BOOK
AU  - Bosworth, Duane A..
TI  - Approved practices in soil coservation / 
SN  - 0-8134-2170-5
U1  - J:17 
PY  - 1980///
CY  - Illinose : 
PB  - The Interstate Printers & Publishers,Inc. , 
KW  - Agriculture<Water>
ER  -