Sheaffer, Craig C.,  <br/><br/>
Introduction to agronomy :  food, crops, and environment 

 - Second edition 
 - Boston, MA :  Cengage,  [2012] 
 - xiv, 704 pages :  colours, illustrations, MAP ;  26 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9781111312336 (hardback)  1111312336 (hardback) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agronomy<br/>Food crops
<br/><br/><label>LC Class. No.: </label>SB91 S54