Making radio work for you :  a handbook for extension agents. 

 - Washington, D.C. : U.S. Dept. of Agriculture,  1952. 
 - 24 p. :  ill. ;  23 cm. 
 - Agriculture handbook / United States Department of Agriculture ;  no. 42 .
 - Agriculture handbook (United States. Department of Agriculture) ;  no. 42. .
<br/><br/> Cover title.  "The Cooperative Extension Service [and others] collaborated in the preparation of this handbook." 
<br/><br/><label>LCCN: </label>agr52000513  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio in agriculture--United States.<br/>Agricultural extension work--United States--Handbooks, manuals, etc.
<br/><br/><label>LC Class. No.: </label>S544  / .A5 1952a 
<br/><br/><label>Dewey Class. No.: </label>630.717 
<br/><br/><label>National Agricultural Library Call No.: </label>1  / Ag84Ah no.42