Chapin, Theodore Sheffield,  1876- <br/><br/>
The Nelchina-Susitna region, Alaska, 
by Theodore Chapin. 
 - Washington,  Govt. print. off.,  1918. 
 - 67 p.  illus., x pl. (part fold., incl. 2 maps in pocket) diagrs.  24 cm. 
 - U.S. Geological survey. Bulletin 668 .
<br/><br/> At head of title: Department of the interior. 
<br/><br/><label>LCCN: </label>gs 19000099 //r40 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Alaska.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 668