Παραπομπή σε μορφή APA (7η εκδ.)

Northern Provinces of Nigeria (Nigeria). Prisons Dept. (1916). Report on the Prisons Department, Northern Provinces of Nigeria, for the year .. Govt. Printer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Northern Provinces of Nigeria (Nigeria). Prisons Dept. Report on the Prisons Department, Northern Provinces of Nigeria, for the Year .. Lagos: Govt. Printer, 1916.

Παραπομπή σε μορφή MLA (8th εκδ.)

Northern Provinces of Nigeria (Nigeria). Prisons Dept. Report on the Prisons Department, Northern Provinces of Nigeria, for the Year .. Govt. Printer, 1916.