Hartley, B. A. (1978). The relationship of selected characteristics to academic acievement and academic progress of academically deficient financial aid recipients. Indiana University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hartley, Byron Ashley. The Relationship of Selected Characteristics to Academic Acievement and Academic Progress of Academically Deficient Financial Aid Recipients. Bloomington: Indiana University, 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hartley, Byron Ashley. The Relationship of Selected Characteristics to Academic Acievement and Academic Progress of Academically Deficient Financial Aid Recipients. Indiana University, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.