Leffingwell, Ernest de Koven,  1876- <br/><br/>
The Canning River region, northern Alaska, 
by Ernest de K. Leffingwell. 
 - Washington,  Govt. print. off.,  1919. 
 - 251 p.  illus., XXXV pl. (part fold.; incl. maps in pocket) diagrs.  29 cm. 
 - United States. Geological survey. Professional paper 109 .
<br/><br/> At head of title: Department of the interior.  Many plates printed on both sides of leaf. 
<br/><br/>"List of geographic names": p. 93-100. Bibliography: p. 242-243. 
<br/><br/><label>LCCN: </label>gs 19000069  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Alaska.
<br/><br/><label>LC Class. No.: </label>QE75  / .P9 no. 109.