Lockwood, F. (1995). Open and distance learning today. Routledge.
Cita Chicago (17th ed.)Lockwood, Fred. Open and Distance Learning Today. London: Routledge, 1995.
Cita MLA (9th ed.)Lockwood, Fred. Open and Distance Learning Today. Routledge, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.