Higgs, Roger. <br/><br/>
Agricultural mathematics; problems in production; management, marketing, mechanization environmental quality 

 - Danville, III :  Interstate,  1973 
 - 299 p.  : ilus. ; gráfs. 
<br/><br/><label>LCCN: </label>15421 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Matematicas.
<br/><br/><label>Dewey Class. No.: </label>630.21  / H5