Mac Donald, A. L. (1976). Agricultural technology in developing countries: Social factors related to the use of modern techniques in two rural areas in Peru. University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mac Donald, Alphonse L. Agricultural Technology in Developing Countries: Social Factors Related to the Use of Modern Techniques in Two Rural Areas in Peru. Rotterdam: University Press, 1976.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Mac Donald, Alphonse L. Agricultural Technology in Developing Countries: Social Factors Related to the Use of Modern Techniques in Two Rural Areas in Peru. University Press, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.