Wagner, L. (1982). The economics of educational media. Macmillan.
Cita Chicago (17th ed.)Wagner, Leslie. The Economics of Educational Media. London: Macmillan, 1982.
Cita MLA (9th ed.)Wagner, Leslie. The Economics of Educational Media. Macmillan, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.