TY  - BOOK
ED  - United States
TI  - Contours of change
T2  - Its Yearbook of agriculture
AV  - S21 .A35 1970
U1  - 338.1/0973 
PY  - 1970///]
CY  - [Washington
PB  - For sale by the Supt. of Docs.
KW  - Agriculture
KW  - United States
KW  - Local
ER  -