Não informado. (2009). Observations Made at Secondary Stations in Netherlands East India. [s.n.].
Chicago-referens (17:e uppl.)Não informado. Observations Made at Secondary Stations in Netherlands East India. Batavia, Indonesia: [s.n.], 2009.
MLA-referens (8:e uppl.)Não informado. Observations Made at Secondary Stations in Netherlands East India. [s.n.], 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.