Thompson, Sue A. <br/><br/>
Notes on the distribution of Pennsylvania plants based on specimens in the Carnegie Museum of Natural History Herbarium / 
Sue A. Thompson, W.E. Buker and Myrta Macdonald 
 - 55 pages ;  28 cm. 
 - Special publication (Carnegie Museum of Natural History);  no. 14 .
 - Special publication (Carnegie Museum of Natural History);  no. 14. .
<br/><br/><label>Subjects--Corporate Names: </label><br/>Carnegie Museum of Natural History--Catalogs and collections.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--Pennsylvania.
<br/><br/><label>Dewey Class. No.: </label>581.9748