Doering, Otto C. <br/><br/>
What is agricultural extensión?; how is et relevant to en energy extension sevice? 

 - West Lafayette, Ind. :  Purdue University. Agricultural Economics Department,  1976. 
 - 10 p. 
<br/><br/><label>LCCN: </label>20526 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Extensión agrícola.