Center for Third World Studies (CTWS). (1991). SADCC challenges for the 1990's: A conference organised by The Center for Third World Studies. Gent: CTWS.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Center for Third World Studies (CTWS). SADCC Challenges for the 1990's: A Conference Organised by The Center for Third World Studies. Gent: CTWS, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Center for Third World Studies (CTWS). SADCC Challenges for the 1990's: A Conference Organised by The Center for Third World Studies. Gent: CTWS, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.