توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

East-Central State (Nigeria). Ministry of Economic Development and Reconstruction. (1971). First development plan, 1970-1974: Programme of post-war reconstruction. Govt. Printer.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

East-Central State (Nigeria). Ministry of Economic Development and Reconstruction. First Development Plan, 1970-1974: Programme of Post-war Reconstruction. Enugu: Govt. Printer, 1971.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

East-Central State (Nigeria). Ministry of Economic Development and Reconstruction. First Development Plan, 1970-1974: Programme of Post-war Reconstruction. Govt. Printer, 1971.