Cita APA (7a ed.)

Walsh, T. (2011). Unlocking the Gates: How and Why Leading Universities Are Opening Up Access to Their Courses. Princeton University Press.

Cita Chicago Style (17a ed.)

Walsh, Taylor. Unlocking the Gates: How and Why Leading Universities Are Opening Up Access to Their Courses. Princeton: Princeton University Press, 2011.

Cita MLA (8a ed.)

Walsh, Taylor. Unlocking the Gates: How and Why Leading Universities Are Opening Up Access to Their Courses. Princeton University Press, 2011.