توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Nigeria. Audit Dept & Nigerian Government Railway. Report on the audit of the accounts of the Nigerian Government Railway (including Motor Road Services). Govt. Printer.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Nigeria. Audit Dept و Nigerian Government Railway. Report on the Audit of the Accounts of the Nigerian Government Railway (including Motor Road Services). Lagos: Govt. Printer.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Nigeria. Audit Dept و Nigerian Government Railway. Report on the Audit of the Accounts of the Nigerian Government Railway (including Motor Road Services). Govt. Printer.