Taubman, P., & Wales, T. (1974). Higher education and earnings: College as an investment and a screening device. McGraw-Hill.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Taubman, Paul, و Terence Wales. Higher Education and Earnings: College as an Investment and a Screening Device. New York: McGraw-Hill, 1974.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Taubman, Paul, و Terence Wales. Higher Education and Earnings: College as an Investment and a Screening Device. McGraw-Hill, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.