Nigeria, Northern Provinces of Nigeria (Nigeria). Prisons Dept, & Southern Provinces, Nigeria. Prisons Dept. (1915). Annual report on the Prison Departments of Nigeria. Govt. Printer.
Lua i Stíl Chicago (17ú heag.)Nigeria, Northern Provinces of Nigeria (Nigeria). Prisons Dept, agus Nigeria. Prisons Dept Southern Provinces. Annual Report on the Prison Departments of Nigeria. Lagos: Govt. Printer, 1915.
Lua MLA (8ú heag.)Nigeria, et al. Annual Report on the Prison Departments of Nigeria. Govt. Printer, 1915.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.