U.S. flag

An official website of the United States government

NALDC

Main content area

The development of the tractor


Author:
Dieffenbach, E.M. and Gray, R.B.
Source:
USDA
Year:
1960
Format:
p. 25-45.
Language:
English
Collection:
USDA publications
Permanent URL:
http://handle.nal.usda.gov/10113/IND43861498