Mulligan, Gerald A. <br/><br/>
Common weeds of Canada  : field guide 

 - Toronto :  NC Press,  1987 
 - 143 p.  : ilus. 
<br/><br/> 64-120 
<br/><br/><label>LCCN: </label>7153 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Malas hierbas--Canadá.
<br/><br/><label>Dewey Class. No.: </label>632.58  / M85