Cita APA (7a ed.)

Kaeckenbeeck, G. (1920). International rivers. H.M. Stationery Office.

Cita Chicago Style (17a ed.)

Kaeckenbeeck, Georges. International Rivers. London: H.M. Stationery Office, 1920.

Cita MLA (9a ed.)

Kaeckenbeeck, Georges. International Rivers. H.M. Stationery Office, 1920.