Herren, Ray V  . <br/><br/>
Science of agriculture: a biological approach /  
by Ray V. Herren. 
 - 3rd ed /  
 - Australia :   Thomson ,   2007 
 - xvii, 646p :  
<br/><br/><label>ISBN: </label>978-1-4018-9800-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J  / P7