Cita APA (7a ed.)

Turnbull, G., & Moore, T. O. (2003). Observations upon liberal education. Liberty Fund.

Cita Chicago Style (17a ed.)

Turnbull, George, y Terrence O. Moore. Observations upon Liberal Education. Indianapolis, Ind.: Liberty Fund, 2003.

Cita MLA (8a ed.)

Turnbull, George, y Terrence O. Moore. Observations upon Liberal Education. Liberty Fund, 2003.