APA (7. basım) Alıntı

Protectorate of Southern Nigeria (Nigeria). (1901). Blue book. Govt. Printer.

Chicago Style (17. basım) Atıf

Protectorate of Southern Nigeria (Nigeria). Blue Book. [Calabar: Govt. Printer, 1901.

MLA (8th ed.) Atıf

Protectorate of Southern Nigeria (Nigeria). Blue Book. Govt. Printer, 1901.