Northern Provinces of Nigeria (Nigeria). Prisons Dept. (1916). Report on the Prisons Department, Northern Provinces of Nigeria, for the year .. Govt. Printer.
Lua i Stíl Chicago (17ú heag.)Northern Provinces of Nigeria (Nigeria). Prisons Dept. Report on the Prisons Department, Northern Provinces of Nigeria, for the Year .. Lagos: Govt. Printer, 1916.
Lua MLA (8ú heag.)Northern Provinces of Nigeria (Nigeria). Prisons Dept. Report on the Prisons Department, Northern Provinces of Nigeria, for the Year .. Govt. Printer, 1916.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.