Cita APA (7a ed.)

Becker, H. K. (1973). Police systems of Europe: A survey of selected police organizations. Thomas.

Cita Chicago Style (17a ed.)

Becker, Harold K. Police Systems of Europe: A Survey of Selected Police Organizations. Springfield, Ill: Thomas, 1973.

Cita MLA (9a ed.)

Becker, Harold K. Police Systems of Europe: A Survey of Selected Police Organizations. Thomas, 1973.