Changes in technology and labor requirements in crop production: wheat and oats. Robert B. Elwood, D. Clarence Schmutz, Lloyd E. Arnold, Eugene G. McKibben.

Changes in technology and labor requirements in crop production: wheat and oats

Philadelphia: WPA, 1939. xv, 182p., wraps, front., illus. Works Progress Administration, National Research Project, report no. A-10.

Cat.No: 40800

Price: $15.00