Sloane, Howard N. <br/><br/>
Visiting American caves 
by Howard N. Sloane and Russell H. Gurnee. 
 - New York  Crown Publishers  [1966] 
 - x, 246 p.  illus., maps.  24 cm. 
<br/><br/>Bibliography: p. 222. 
<br/><br/><label>LCCN: </label>66018457  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Caves--Directories.--United States
<br/><br/><label>LC Class. No.: </label>GB604  / .S6 
<br/><br/><label>Dewey Class. No.: </label>917.309144