Samuels, R. (2013). Why public higher education should be free: How to decrease costs and increase quality at American universities. Rutgers University Press.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Samuels, Robert. Why Public Higher Education Should Be Free: How to Decrease Costs and Increase Quality at American Universities. New Brunswick, New Jersey: Rutgers University Press, 2013.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Samuels, Robert. Why Public Higher Education Should Be Free: How to Decrease Costs and Increase Quality at American Universities. Rutgers University Press, 2013.
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