Borneo-expedition : geological explorations in Central-Borneo (1893-1894) / by G.A.F. Molengraaff
Oorspronkelijk verschenen in het Nederlands o.d.t.: Borneo-expeditie : geologische verkenningstochten in Centraal Borneo (1893-94)
Published by the Society for the Promotion of the Scientific Exploration of the Dutch Colonies
Borneo-expedition : geological explorations in Central-Borneo (1893-1894)