(1993). Federal Family Education Loans Reduced Costs, Direct Lending, and National Income / Barbara Miles and Dennis Zimmerman. [microform].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Federal Family Education Loans Reduced Costs, Direct Lending, and National Income / Barbara Miles and Dennis Zimmerman. [microform]. 1993.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Federal Family Education Loans Reduced Costs, Direct Lending, and National Income / Barbara Miles and Dennis Zimmerman. [microform]. 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.