Luttrell, Gwendolyn Lewise Werth,  1927- <br/><br/>
Stratigraphic nomenclature of the Newark supergroup of Eastern North America / 
by Gwendolyn W. Luttrell 
 - Washington, D.C. :  United States Geological Survey,  1990 
 - 136 p. :  ill. ;  23 cm. 
 - U.S. Geological Survey bulletin ;  1572 .
<br/><br/> Folded map in pocket 
<br/><br/>Bibliography: p. 123-126 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Nomenclature--Triassic<br/>Geology, Stratigraphic--Nomenclature--Jurassic<br/>Geology--Nomenclature--North America
<br/><br/><label>Dewey Class. No.: </label>551.7097