Windham, D. M. (1978). Incentive analysis and higher educational planning: Alternatives in theory, research, and policy. International Institute for Educational Planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Windham, Douglas M. Incentive Analysis and Higher Educational Planning: Alternatives in Theory, Research, and Policy. Paris: International Institute for Educational Planning, 1978.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Windham, Douglas M. Incentive Analysis and Higher Educational Planning: Alternatives in Theory, Research, and Policy. International Institute for Educational Planning, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.