Williams, Gordon John <br/><br/>
Explanation of the geology of degree sheet no.18 (Shinyanga) 

 - Dar es Salaam  Government Printer  1939 
 - 23p.  25cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>LC Class. No.: </label>EAF QE327.T3A32 No.13