Agricultural extension :  a reference manual / 
edited by Burton E. Swanson. 
 - 2nd ed. 
 - Rome :  Food and Agriculture Organization of the United Nations,  1984. 
 - xi, 262 p. :  ill. ;  30 cm. 
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<br/><br/><label>ISBN: </label>925101504X (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural extension work--Handbooks, manuals, etc.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Developing countries--Agricultural extension work--Handbooks, manuals, etc.