توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Abacha, S. (1998). 1998 budget address by the head of state, commander-in-chief of the armed forces of the federal republic of Nigeria, general. [s.n].

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Abacha, Sani. 1998 Budget Address by the Head of State, Commander-in-chief of the Armed Forces of the Federal Republic of Nigeria, General. [Abuja?]: [s.n], 1998.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Abacha, Sani. 1998 Budget Address by the Head of State, Commander-in-chief of the Armed Forces of the Federal Republic of Nigeria, General. [s.n], 1998.