TY  - JA
AU  - Bogue,A.G.
TI  - Changes in mechanical and plant technology:  the Corn Belt, 1910-1940 [North Central States (USA)]
SN  - 0022-0507
U1  - 84-066977 
PY  - 1983///
KW  - Agricultural Economics and policies
KW  - Agricultural machinery and equipment
KW  - History
KW  - Maize Zea mays
KW  - North central states usa
N1  - Includes 33 references
T2  - Journal of Economic History (USA). (Mar 1983). v. 43(1) p. 1-25
ER  -