توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

International Food Policy Research Institute & Sahn, D. E. (1989). Seasonal variability in Third World agriculture: The consequences for food security. Johns Hopkins University Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

International Food Policy Research Institute و David E. Sahn. Seasonal Variability in Third World Agriculture: The Consequences for Food Security. Baltimore: Johns Hopkins University Press, 1989.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

International Food Policy Research Institute و David E. Sahn. Seasonal Variability in Third World Agriculture: The Consequences for Food Security. Johns Hopkins University Press, 1989.