Cita APA (7a ed.)

Beckman, E. (1980). Law enforcement in a democratic society: An introduction. Nelson-Hall.

Cita Chicago Style (17a ed.)

Beckman, Erik. Law Enforcement in a Democratic Society: An Introduction. Chicago: Nelson-Hall, 1980.

Cita MLA (9a ed.)

Beckman, Erik. Law Enforcement in a Democratic Society: An Introduction. Nelson-Hall, 1980.