TY  - BOOK
AU  - Kohnke,Helmut
AU  - Bertrand,Anson R.
TI  - Soil Conservation / 
U1  - 631.451 
PY  - 1959///
CY  - New York
PB  - Mcgrew-Hell Book Company
KW  - Soil Conservation
N1  - Includes Index
ER  -