Gaya APA

Umbgrove, J, H, F., Verwey, J. (1929). The Coral Reefs in the Bay of Batavia . Bogor: Archipel Drukkerij Buitenzorg.

Gaya MLA

Umbgrove, J., H., F.., Verwey, J.. "The Coral Reefs in the Bay of Batavia". Bogor: Archipel Drukkerij Buitenzorg, 1929. Text.