The agricultural tractor, 1855-1950
By: R. B. Gray.
Publisher: American Society of Agricultural Engineers
Published: 1975
Place of publication: Saint Joseph, Mich
Language: eng
Number of pages: 91
Subjects: Farm tractors -- United States -- History.; Agricultural machinery -- United States -- History.
Work titles: Development of the agricultural tractor in the United States
Notes: First published in 1954 under title, Development of the agriculturaltractor in the United States.

Includes indexes.