Herren, Ray V. <br/><br/>
The science of agriculture :  a biological approach / 
Ray V. Herren. 
 - 4th edition. 
 - Australia :  Delmar Cengage Learning,  2012. 
 - xvi, 764 pages :  illustrations (colored) ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781439057766 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture.