Cruz, W. D. (1983). An environmental-demographic model of techno-institutional change in transitional economics. College Development Economics and Management, University of the Philippines at Los Banos.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cruz, Wilfrido D. An Environmental-demographic Model of Techno-institutional Change in Transitional Economics. College, Laguna: College Development Economics and Management, University of the Philippines at Los Banos, 1983.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Cruz, Wilfrido D. An Environmental-demographic Model of Techno-institutional Change in Transitional Economics. College Development Economics and Management, University of the Philippines at Los Banos, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.