Cita APA (7a ed.)

Martin, C. A., & Pfeifer, R. L. (1980). Police and covert communications. Public administration series.

Cita Chicago Style (17a ed.)

Martin, Carol A., y Roger L. Pfeifer. "Police and Covert Communications." Public Administration Series 1980.

Cita MLA (8a ed.)

Martin, Carol A., y Roger L. Pfeifer. "Police and Covert Communications." Public Administration Series, 1980.