Loomis, R. S. <br/><br/>
Crop ecology :  productivity and management in agricultural systems / 
R.S. Loomis, D.J. Connor. 
 - 1st ed. 
 - New York :  Cambridge University Press,  1992 
 - xiv, 538 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>052138379X 0521387760 
<br/><br/><label>LCCN: </label>91029201  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural ecology<br/>Agricultural systems
<br/><br/><label>LC Class. No.: </label>S589.7  / .L66 1992 
<br/><br/><label>Dewey Class. No.: </label>631.1  / LOC