A Provisional checklist of species for flora North America /  
edited by Stanwyn G. Shetler, Laurence E. Skog. 
 - Rev. 
 - [St. Louis, Missouri] :   Published for MAB/FNA by Missouri Botanical Garden,   1978. 
 - xix, 199 p. 
 - Monographs in systematic botany from the Missouri Botanical Garden ;   v. 1 Flora North America report ;   84 .
<br/><br/><label>LCCN: </label>79111468  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botânica--América do Norte.
<br/><br/><label>Dewey Class. No.: </label>581.97