Report on the preliminary geological survey of the Potaro-Ireng district of British Guiana, April-December, 1926 

 - Georgetown  Geological Survey Department  1958 
 - 59p.  ill., maps  36 cm 
<br/><br/> Bibliography : p. 55-59 
<br/><br/><label>Dewey Class. No.: </label>Pam 558.81, WI Bri