Cita APA

Northern Nigeria (Protectorate). Blue book. Printed by the Govt. Printer.

Chicago Style (17th ed.) Citation

Northern Nigeria (Protectorate). Blue Book. Lagos: Printed by the Govt. Printer.

Cita MLA

Northern Nigeria (Protectorate). Blue Book. Printed by the Govt. Printer.

Atenció: Aquestes cites poden no estar 100% correctes.