TY  - BOOK
AU  - Christensen,Raymond P.
AU  - Hendrix,William E.
AU  - Stevens,Robert D.
TI  - How the United States improved its agriculture
AV  - HD1761 .C46
PY  - 1964///
CY  - Washington, D.C.
PB  - Development and Trade Analysis Division, Economic Research Service, U.S. Dept. of Agriculture
KW  - Agriculture
KW  - Economic aspects
KW  - United States
KW  - Agriculture and state
N1  - Cover title; "Literature cited": p. 31-32
ER  -