Guest, N. J. <br/><br/>
Volcanology:   the volcanic  activity of Oldonyo L'engai, 1954 
N. J. Guest 
 -  1954 
 - 5p.  33cm. 
<br/><br/>Includes references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Volcanoes<br/>Volcanic activity,<br/>Tanzania<br/>Oldonyo L'engai
<br/><br/><label>LC Class. No.: </label>EAF FOS G85