Proceedings of the first seminar in Earth Sciences :  Ansti's Earth Science Subnetwork / 
edited by Isaac O . Nyambok. 
 - Dakar :  University of Dakar, Senegal,  1986. 
 - viii, 124 p. :  ill. ;  30 cm. 
<br/><br/>Includes bib. references. 
<br/><br/> Open. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences--Africa--Congresses.<br/>Earth sciences--Congresses.