International Association for the Evaluation of Educational Achievement Studies. Teaching and learning social values and morality: A proposal submitted to the IEA by an Ad Hoc Committee of the IEA. 1987.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Association for the Evaluation of Educational Achievement Studies. Teaching and Learning Social Values and Morality: A Proposal Submitted to the IEA by an Ad Hoc Committee of the IEA. [s.l.]: 1987.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Association for the Evaluation of Educational Achievement Studies. Teaching and Learning Social Values and Morality: A Proposal Submitted to the IEA by an Ad Hoc Committee of the IEA. 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.