توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Nigeria. Dept. of Commerce and Industries. (1953). Statement on the activities of the Department of Commerce and Industries. Govt. Printer.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Nigeria. Dept. of Commerce and Industries. Statement on the Activities of the Department of Commerce and Industries. Lagos: Govt. Printer, 1953.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Nigeria. Dept. of Commerce and Industries. Statement on the Activities of the Department of Commerce and Industries. Govt. Printer, 1953.