(1991). Enhancement of agricultural research in Francophone Africa: Proceedings of the Pan-African conferenceon agriculture and agricultural research in Africa. Academy science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Enhancement of Agricultural Research in Francophone Africa: Proceedings of the Pan-African Conferenceon Agriculture and Agricultural Research in Africa. Douala: Academy science, 1991.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Enhancement of Agricultural Research in Francophone Africa: Proceedings of the Pan-African Conferenceon Agriculture and Agricultural Research in Africa. Academy science, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.