James, Sydney C. <br/><br/>
Economic and business principles in farm planning and production 
by Sydney C. James and Phillip R. Eberle 
 - Ames (Iowa)  Iowa State University Press  2000 
 - 413 p.  26 cm 
<br/><br/><label>ISBN: </label>0813828805 
<br/><br/><label>Subjects--Index Terms: </label>Manejo de fincas Economia agricola