The introduction of farm machinery in its relation to the productivity of labor in the agriculture of the United States during the nineteenth century
Series: University of California publications in economics,; v.9
Publisher: University of California Press
Published: 1931
Place of publication: Berkeley, Ca
Language: eng
Number of pages: 260
Subjects: Agricultural machinery.; Agriculture -- United States.; Agricultural laborers -- United States.; Wheat -- United States.
Notes: "Index of authors cited": p. 244-251.