Twenty-five years in British Guiana,
Grietjebie, schoonheid van Suriname;: Een reis langs oerwouden en rivieren (Toorts contacten)
The pocket guide to the West Indies: And British Guiana, British Honduras, Bermuda,
Report of the third expedition into the interior of Guayana,: Comprising the journey to the sources of the Essequibo, to the Carumá Mountains, and to Fort San Joaquim, on the Rio Branco, in 1837-8
Suriname
Narrative, of a five years' expedition, against the revolted Negroes of Surinam, in Guiana, on the wild coast of South America;: From the year 1772 to ... that country and describing its productions
Treasure,
Documents and maps on the boundary question between Venezuela and British Guayana from the Capuchin archives in Rome;
The West on Trial My Fight For Guyana's Freedom
Wegwijs in Paramaribo: 1:12.500