Hopkins, John Abel. <br/><br/>
Farm record and accounting 

 - 5 ed. 
 - Ames :  Iowa State University,  1962 
 - 377 p.  : gráfs. 
<br/><br/><label>LCCN: </label>16463 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Contabilidad.
<br/><br/><label>Dewey Class. No.: </label>631.16  / H66 1962