Shephard, N. (2009). Income contingent tuition fees for universities. University of Oxford.
Cita Chicago (17th ed.)Shephard, N. Income Contingent Tuition Fees for Universities. University of Oxford, 2009.
Cita MLA (9th ed.)Shephard, N. Income Contingent Tuition Fees for Universities. University of Oxford, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.