Cita APA (7a ed.)

Keith, M. C., & Cornils, W. (1992). Selling radio direct. Focal Press.

Cita Chicago Style (17a ed.)

Keith, Michael C., y Wayne Cornils. Selling Radio Direct. Boston [etc.]: Focal Press, 1992.

Cita MLA (9a ed.)

Keith, Michael C., y Wayne Cornils. Selling Radio Direct. Focal Press, 1992.