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题名/责任者:

The agricultural tractor : 1855-1950 / R.B. Gray.

出版发行项:

Saint Joseph, Mich. : American Society of Agricultural Engineers, revised 1975.

载体形态项:

91, 60 p. : ill. ; 28 cm.

统一题名:

Development of the agricultural tractor in the United States.

个人责任者:

Gray, Roy Burton, 1884-

论题主题:

Agricultural machinery-United States-History.

论题主题:

Farm tractors-United States-History.

中图法分类号:

S219

一般附注:

Includes indexes.

一般附注:

First published in 1954 under title: Development of the agricultural tractor in the United States.

内容附注:

Part I. -- 1855 - 1919 -- Part II. -- 1920 - 1950.

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