Cita APA (7th ed.)

Hagerman, W. L. (1990). Broadcast advertising copywriting. Focal Press.

Cita Chicago (17th ed.)

Hagerman, William L. Broadcast Advertising Copywriting. Boston: Focal Press, 1990.

Cita MLA (9th ed.)

Hagerman, William L. Broadcast Advertising Copywriting. Focal Press, 1990.