Nigeria. Government Printing Dept. Annual report on the Nigeria Marine. Govt. Printer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNigeria. Government Printing Dept. Annual Report on the Nigeria Marine. Lagos: Govt. Printer.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNigeria. Government Printing Dept. Annual Report on the Nigeria Marine. Govt. Printer.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.