Principles of ecology in plant production / 
edited by T. R. Sinclair and the late F. P. Gardner. 
 - Oxon :  CABI,  c1988. 
 - x, 189 p. :  ill. ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>085199220X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops--Ecology.
<br/><br/><label>LC Class. No.: </label>SB91  / .P75 1998