Cita APA (7a ed.)
Zahl, P. A. (1939). To the lost world. A.A. Knopf.
Cita Chicago Style (17a ed.)
Zahl, Paul Arthur. To the Lost World. New York, London: A.A. Knopf, 1939.
Cita MLA (9a ed.)
Zahl, Paul Arthur. To the Lost World. A.A. Knopf, 1939.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.