Knotts, Armanis F. <br/><br/>
The dunes of northwestern Indiana, 
by A.F. Knotts ... "Photos taken by H.H. Daugherty, Gary, Ind." 
 - [Gary?  1917] 
 - 20 p.  illus. (incl. maps)  23 cm. 
<br/><br/> "Prepared for and published in Indiana Geological Report, 1916." [Forty-first annual report of Department of Geology and Natural Resources, Indiana, p. 11-27] 
<br/><br/><label>LCCN: </label>ca 19000073  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sand dunes.<br/>Geology--Indiana.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Michigan, Lake.
<br/><br/><label>LC Class. No.: </label>GB635.I6  / K6