APA (7th ed.) Citation

Umbgrove, J. H. F. (1949). Structural history of the East Indies. University Press.

Chicago Style (17th ed.) Citation

Umbgrove, Johannes Herman Frederik. Structural History of the East Indies. Cambridge [England]: University Press, 1949.

MLA (9th ed.) Citation

Umbgrove, Johannes Herman Frederik. Structural History of the East Indies. University Press, 1949.