Northern Provinces of Nigeria (Nigeria). Prisons Dept. (1916). Report on the Prisons Department, Northern Provinces of Nigeria, for the year .. Govt. Printer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNorthern Provinces of Nigeria (Nigeria). Prisons Dept. Report on the Prisons Department, Northern Provinces of Nigeria, for the Year .. Lagos: Govt. Printer, 1916.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNorthern Provinces of Nigeria (Nigeria). Prisons Dept. Report on the Prisons Department, Northern Provinces of Nigeria, for the Year .. Govt. Printer, 1916.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.