The spirit and philosophy of extension work, as recorded in significant extension papers 

 - Washington :  USDA and Epsilon Sigma Phi,  1952 
 - 393 p. 
<br/><br/><label>LCCN: </label>57784 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Extensión agrícola.
<br/><br/><label>Dewey Class. No.: </label>630.717  / S65