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.

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.

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.