Geological survey of British Guiana ...  report on the prospecting for oil in British Guiana, by Dr. [S.N.] Simakov, and Dr. [V.V.] Fedynsky 

 - [Georgetown]  [Geological Survey Department]  1965 
 - 48 pages  7 maps (in pocket at back), tables  24 cm 
 - Bulletin 36 .
 - Bulletin 36 .
<br/><br/>Bibliography: pages 46-48