Dickinson, Richard,  1960- <br/><br/>
Weeds of the northern U.S. and Canada/ 
Richard Dickinson 
 - Canada :  The University of Alberta Press, 
 - 434p.  ill.  24 cm. 
<br/><br/> İncludes index. 
<br/><br/><label>ISBN: </label>1551052210 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weeds--Canada<br/>Weeds--United States--Identification
<br/><br/><label>LC Class. No.: </label>SB613.C2