No.	Title	Date
1	Las cosas de Venezuela
2	The pocket guide to the West Indies
3	The pocket guide to the West Indies
4	Daniel De Leon : the man and his work : a symposium
5	Le tombeau de Saint Martin de Tours : notes et documents sur la découverte du tombeau, le rétablissement du culte de saint Martin et la reconstruction de la Basilique, 1854-1893
6	The pocket guide to the West Indies : British Guiana, British Honduras, the Bermudas, the Spanish Main and the Panama canal
7	The pocket guide to the West-Indies, British Guiana, British Honduras, the Bermudas, the Spanish Main and the Panama canal
8	The pocket guide to the West-Indies, British Guiana, British Honduras, Bermuda, the Spanish Main, Surinam and the Panama canal
9	Suriname en de Nederlandse Antillen in de Verenigde Naties : verslag van de handelingen der zesde algemene vergadering (november 1951-februari 1952) terzake van het beëindigen door Nederland van de rapportage over de West-Indische Rijksdelen
10	The pocket guide to the West Indies : British Guiana, British Honduras, Bermuda, The Spanish Main, Surinam and the Panama Canal
11	The pocket guide to the West Indies and British Guiana, British Honduras, Bermuda, The Spanish Main, Surinam, the Panama Canal
12	Verhandelingen van het Koninklijk Nederlandsch Geologisch-Mijnbouwkundig Genootschap.