Barkley, Andrew P., <br/><br/>
Principles of agricultural economics / 
Andrew Barkley and Paul W. Barkley. 
 - London ;;New York :  Routledge,  2013 
 - xxiv, 351 p. :  ill.   25 cm. 
<br/><br/><label>ISBN: </label>9780415540698;9780415540704 (pbk);9780203371145 (ebk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Economic aspects
<br/><br/><label>Universal Decimal Class. No.: </label>338.1