Koeman, C. (1961). Collections of maps and atlases in the Netherlands: Their history and present state. E.J. Brill.
Chicago-referens (17:e uppl.)Koeman, C. Collections of Maps and Atlases in the Netherlands: Their History and Present State. Leiden: E.J. Brill, 1961.
MLA-referens (8:e uppl.)Koeman, C. Collections of Maps and Atlases in the Netherlands: Their History and Present State. E.J. Brill, 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.