TY  - BOOK
AU  - Davies , D.A Bryn
TI  - Report on the groete creek and mariwa goldfields of the lower  essequibo and lower  cuyuni rivers: geological survey of british guiana
U1  - 553 21st ed
PY  - 1938///
CY  - Georgetown, Demerara
PB  - the argosy to the government of british guiana
KW  - Geology
KW  - History of the fields and production
KW  - hill deposits
N1  - Bulletin No. 6, report on the occurrence of managanese ore at saxaxalli. lower essequibo
ER  -