Massachusetts Institute of Technology. Center for International Studies & Hapgood, D. (1969). The Role of popular participation in development: Report of a conference on the implementation of Title IX of the Foreign assistance act, June 24 to August 2, 1968. M.I.T. Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Massachusetts Institute of Technology. Center for International Studies و David Hapgood. The Role of Popular Participation in Development: Report of a Conference on the Implementation of Title IX of the Foreign Assistance Act, June 24 to August 2, 1968. Cambridge, Mass.: M.I.T. Press, 1969.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Massachusetts Institute of Technology. Center for International Studies و David Hapgood. The Role of Popular Participation in Development: Report of a Conference on the Implementation of Title IX of the Foreign Assistance Act, June 24 to August 2, 1968. M.I.T. Press, 1969.