توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Kirkwood, K. (1951). The proposed federation of the Central African territories: By Kenneth Kirkwood. South African Institute of Race Relations.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Kirkwood, Kenneth. The Proposed Federation of the Central African Territories: By Kenneth Kirkwood. Johannesburg: South African Institute of Race Relations, 1951.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Kirkwood, Kenneth. The Proposed Federation of the Central African Territories: By Kenneth Kirkwood. South African Institute of Race Relations, 1951.