Tillage,planting,and harvesting equipment on grain farms and rates of doing field work with these implements when drawn with horse and with tractor power,Northern Great Plains and Pacific Northwest
By: By R.S.Washburn and Della Merrick
Published: 1936
Place of publication: Washington,D.C
Language: eng
Number of pages: 51
Subjects: Agricultural machinery; Harvesting machinery; Horses; Grain; Agriculture; Tractors
Notes: At head of title:United States Department of Agriculture,Bureau of Agricultural Economics.