TY  - BOOK
ED  - United States.
TI  - Our American land; use the land, save the soil
T2  - United States. Dept. of Agriculture. Agriculture information bulletin
AV  - S21 .A74 no. 321
PY  - 1967///]
CY  - [Washington
PB  - U.S. Govt. Print. Off.
KW  - Land use
KW  - United States
KW  - Soil conservation
KW  - Land utilization
ER  -