Niering, William A. <br/><br/>
The Audubon society field guide to northern American wildflowers  eastern region 

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 - New York  Alfred A. Knopf  1979 
 - 863 p. illus. w/index 
<br/><br/> card 
<br/><br/><label>ISBN: </label>0-394-50432-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wildflowers--Field guide