On the frontier of British Guiana and Brazil : some views in the interior of Guyana /
by C.P. De Freitas.
- Guyana : Guyana National Printers, 1993.
- 131 p. : ill., photos, map.
- The trip to Mount Roraima vol. 1 .
Guyana--Description and travel. Brazil--Boundaries--Guyana. Guyana--Boundaries--Brazil. Roraima, Mount.