Bradfield, D. J. <br/><br/>
Guide to extension training. 

 - Rome :  Food and Agriculture Organization of the United Nations,  [1969] 
<br/><br/> Fist published in 1966.  "Second printing (with some revision)." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural extension work.<br/>Agricultural education.