Gurnee, Russell H. <br/><br/>
The  caves of Guatemala 

 - [Trenton, N.J.  National Speleological Society]  1962 
 - 25-30p.  ill., diagrs.  25 cm 
<br/><br/> Extract from Bulletin Volume 24, Part 1, January, 1962, of the National Speleological Society 
<br/><br/><label>Dewey Class. No.: </label>Pam 551.44  / WI Gur