The tractor as a means of reducing crop production costs / E.S. Hopkins, OAC Review, v.39, no.8, Apr. 1927, p.370-373. 1927.
Related Entities
There are 2 Entities related to this resource.
OAC Review Index
http://n2t.net/ark:/99166/w6b960zv (corporateBody)
Hopkins, E.S.
http://n2t.net/ark:/99166/w6zs32cb (person)