Stalactites hang down and other questions about caves /   Jackie Gaff.   

 - London :  Kingfisher,  c2003.   
 - 32 p. : col. ill.   
 -  I wonder why   .
<br/><br/> Includes index <br/> 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>CIR 551.447 G12 2003