Spencer, Edwin Rollin <br/><br/>
All about weeds  Edwin Rollin Spencer. 

 - New York  Dover  1968 
 - xvi, 333p., ill. 22cm. 
<br/><br/><label>ISBN: </label>0-486-23051-1. 
<br/><br/><label>Dewey Class. No.: </label>632.51  / S63A