| Reference | {Deposit:: POLLARD, E.R., 1952, APPENDIX III, GEOLOGICAL SURVEY OF BRITISH GUIANA BARTICA DISTRICT, REPORT ON THE MAKAPA REGION OF THE UPPER CUYUNI RIVER IN REPORT OF THE GEOLOGICAL SURVEY DEPARTMENT FOR THE YEAR 1951: GEOLOGICAL SURVEY OF BRITISH GUIANA, P. 45-49}{Other Database:: CIMRI} |