Title :
Roots of the farm problem
Author Statement :
Earl. O. Heady... (et al)
Publication :
The Iowa State Uni. Press
Collation :
viii, 224 p.: illus.; 23 cm
Subject :
Agriculture -- Economic aspects -U.S
ADDED ENTRIES :
Heady, Earl O
SubTitle :
: changing technology. changing capital use. changing labor needs
