Aldrich, R. J.  1925- <br/><br/>
Weed-crop ecology :  principles in weed management / 
R.J. Aldrich. 
 - N. Scituate, Mass. :  Breton Publishers,  c1984. 
 - xiii, 465 p. :  ill. 
<br/><br/><label>ISBN: </label>0534028330 
<br/><br/><label>LCCN: </label>91035107     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds--Control.<br/>Weeds.<br/>Weeds--Ecology.