Encyclopedia of geology  v. 4 - N-Se 
edited by Richard C. Selley, Ian R. Plimer and L. R. M. Cocks 
 - Amsterdam  Elsevier Academic Press  2005 
 -  col. plates; figs; index; tables; refs 
<br/><br/><label>ISBN: </label>0-12-636381-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EncyclopediaGeologyEarth
<br/><br/><label>Universal Decimal Class. No.: </label>55(031)  / SEL