Studies of appalachian geology:  northern and maritime/ 
edited by E-an Zen, Walter S. White, and Jarvis B. Hadley. 
 - New York:  Interscience Publishers,  1968. 
 - xviii, 475 pages :  illustrations, maps (part color), port ;   28 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Billings, Marland Pratt, 1902.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Appalachian Mountains.