Padfield Harland <br/><br/>
Farmers workers and machines   Technological and so    

 - Tucson  University of Arizona Press         1965 
 - xiv, 325p. Bib p. 316-22,Appendixp.268-315  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labour
<br/><br/><label>Dewey Class. No.: </label>X9(J):9.7342.N6, K5