Shelter, Stanwyn G. <br/><br/>
A provisional checklist of species for flora North America (revised) / 
Edited by Stanwyn G Shelter Laurence E Skog 
 - 200 pages ;  22 cm. 
 - Monographs in systematic botany ;  vol. 1 .
 - Monographs in systematic botany ;  vol. 1. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--United States--Identification.<br/>Botany--North America--Identification.
<br/><br/><label>Dewey Class. No.: </label>581.97