Altbach, P. G., Berdahl, R. O., & Gumport, P. J. (2011). American higher education in the twenty-first century: Social, political, and economic challenges (Third edition.). Johns Hopkins University Press.
Lua i Stíl Chicago (17ú heag.)Altbach, Philip G., Robert Oliver Berdahl, agus Patricia J. Gumport. American Higher Education in the Twenty-first Century: Social, Political, and Economic Challenges. Third edition. Baltimore: Johns Hopkins University Press, 2011.
Lua MLA (9ú heag.)Altbach, Philip G., et al. American Higher Education in the Twenty-first Century: Social, Political, and Economic Challenges. Third edition. Johns Hopkins University Press, 2011.
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