Herren, Ray V <br/><br/>
The science of agriculture : a biological approach 
Ray V. Herren 
 - 3rd ed 
 - Clifton Park, NY  Delmar/Cengage Learning  c2007 
 - xvii, 646 p. : ill. (chiefly col.), col. maps ; 29 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9781401898007 
<br/><br/><label>ISSN: </label>2005046744 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>630 HER