Sheaffer, Craig C. <br/><br/>
Introduction to agronomy   food, crops, and environment 
Craig C Sheaffer 
 - 2nd  
 - New York   Delmar  Cengage Learning 
<br/><br/><label>ISBN: </label>978-1-11-131233-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Food Crops
<br/><br/><label>LC Class. No.: </label>SB 91 .S48 2012