Cita APA (7th ed.)
Turnbull, G., & Moore, T. O. (2003). Observations upon liberal education. Liberty Fund.
Cita Chicago (17th ed.)
Turnbull, George, i Terrence O. Moore. Observations upon Liberal Education. Indianapolis, Ind.: Liberty Fund, 2003.
Cita MLA (9th ed.)
Turnbull, George, i Terrence O. Moore. Observations upon Liberal Education. Liberty Fund, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.