Picard, R. G. (1989). Media economics: Concepts and issues (1. Aufl.). SAGE Publications.
Cita Chicago (17th ed.)Picard, Robert G. Media Economics: Concepts and Issues. 1. Aufl. Newbury Park [u.a.]: SAGE Publications, 1989.
Cita MLA (8th ed.)Picard, Robert G. Media Economics: Concepts and Issues. 1. Aufl. SAGE Publications, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.