توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Pingali, P. L., Bigot, Y., & Binswanger, H. P. (1987). Agricultural mechanization and the evolution of farming systems in sub-Saharan Africa. Published for the World Bank, Johns Hopkins University Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Pingali, Prabhu L., Yves Bigot, و Hans P. Binswanger. Agricultural Mechanization and the Evolution of Farming Systems in Sub-Saharan Africa. Baltimore: Published for the World Bank, Johns Hopkins University Press, 1987.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Pingali, Prabhu L., et al. Agricultural Mechanization and the Evolution of Farming Systems in Sub-Saharan Africa. Published for the World Bank, Johns Hopkins University Press, 1987.