Bertrand Russell Centenary Symposium on Spheres of Influence in the Age of Imperialism Linz, Bertrand Russell Peace Foundation, & Dedijer, V. (1973). Spheres of influence and the Third World: Papers presented to the Bertrand Russell Centenary Symposium, Linz, Austria, September 11th to 15th, 1972. Bertrand Russell Peace Foundation for 'The Spokesman'.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bertrand Russell Centenary Symposium on Spheres of Influence in the Age of Imperialism Linz, Bertrand Russell Peace Foundation, و Vladimir Dedijer. Spheres of Influence and the Third World: Papers Presented to the Bertrand Russell Centenary Symposium, Linz, Austria, September 11th to 15th, 1972. Nottingham: Bertrand Russell Peace Foundation for 'The Spokesman', 1973.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Bertrand Russell Centenary Symposium on Spheres of Influence in the Age of Imperialism Linz, et al. Spheres of Influence and the Third World: Papers Presented to the Bertrand Russell Centenary Symposium, Linz, Austria, September 11th to 15th, 1972. Bertrand Russell Peace Foundation for 'The Spokesman', 1973.