Journal of extension. 
 Journal of cooperative extension. 

 - Madison :  Extension Journal,  1963. 
<br/><br/> UKM: v.12 91974)-. Judul asal'Journal of cooperative extension'. Hadiah penerbit. 
<br/><br/><label>ISSN: </label>0022-0140 
 = Journal of extension. Journal of extension. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Adult education--Periodicals.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural extension work--Periodicals.<br/>Teaching--Periodicals.