World weeds :  natural histories and distribution / 
LeRoy Holm ... [et al.]. 
 - New York :  Wiley,  1997. 
 - xv, 1129 p. :  ill. 
<br/><br/><label>ISBN: </label>0471047015 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds--Identification.<br/>Weeds--Geographical distribution.