Proceeding 

 - Gulph  CAES            1951 
 - 71p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Industry
<br/><br/><label>Dewey Class. No.: </label>X9(J).72.N51, J1