De Witt, Wallace,  1920- <br/><br/>
Bedrock geology of the Evitts Creek and Pattersons Creek quadrangles, Maryland, Pennsylvania, and West Virginia, 
by Wallace De Witt, Jr., and George W. Colton. 
 - Washington,  U.S. Govt. Print. Off.,  1964. 
 - iv, 90 p.  illus., maps (2 col.)  24 cm. 
<br/><br/> Part of illustrative matter fold. in pocket.  "Prepared partly in cooperation with the Maryland Department of Geology, Mines, and Water Resources." 
<br/><br/>Bibliography: p. 84-86. 
<br/><br/><label>LCCN: </label>gs 65000184  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Maryland<br/>Geology--Pennsylvania<br/>Geology--West Virginia
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 1173