(1981). Modality education project: Overview / Department of Education Division of Special and Compensatory Education, Title I, ESEA Migrant Program.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Modality Education Project: Overview / Department of Education Division of Special and Compensatory Education, Title I, ESEA Migrant Program. 1981.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Modality Education Project: Overview / Department of Education Division of Special and Compensatory Education, Title I, ESEA Migrant Program. 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.