Cita APA (7th ed.)

Berry, S. T., & Waldfogel, J. (1999). Mergers, station entry, and programming variety in radio broadcasting. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Berry, Steven T., i Joel Waldfogel. Mergers, Station Entry, and Programming Variety in Radio Broadcasting. Cambridge: National Bureau of Economic Research, 1999.

Cita MLA (9th ed.)

Berry, Steven T., i Joel Waldfogel. Mergers, Station Entry, and Programming Variety in Radio Broadcasting. National Bureau of Economic Research, 1999.