Lebas Michael John <br/><br/>
Carbonatite-Nephelinite volcanism: an african case history 

 - London  John Wiley          1977 
 - 347p.  cm. 
<br/><br/> Appendix I-II, 294-317p. 
<br/><br/><label>Standard No.: </label>49254 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Volcanic rock<br/>Geology
<br/><br/><label>Dewey Class. No.: </label>H211, L7-;1