Parnes, H. S. (1962). Forecasting educational needs for economic and social development. Organisation for Economic Co-operation and Development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Parnes, Herbert S. Forecasting Educational Needs for Economic and Social Development. [Paris]: Organisation for Economic Co-operation and Development, 1962.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Parnes, Herbert S. Forecasting Educational Needs for Economic and Social Development. Organisation for Economic Co-operation and Development, 1962.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.