Cita APA (7a ed.)

Ormeling, F. J. (1956). The Timor problem: A geographical interpretation of an underdeveloped island. Nijhoff.

Cita Chicago Style (17a ed.)

Ormeling, Ferdinand Jan. The Timor Problem: A Geographical Interpretation of an Underdeveloped Island. The Hague: Nijhoff, 1956.

Cita MLA (9a ed.)

Ormeling, Ferdinand Jan. The Timor Problem: A Geographical Interpretation of an Underdeveloped Island. Nijhoff, 1956.