Cita APA (7a ed.)

USA, National Highway Traffic Safety Administration, & USA National Highway Traffic Safety Administration. (1977). Manual for police traffic services personnel performance evaluation system. U.S. Dept. of Transportation.

Cita Chicago Style (17a ed.)

USA, National Highway Traffic Safety Administration, y USA National Highway Traffic Safety Administration. Manual for Police Traffic Services Personnel Performance Evaluation System. Washington, D.C: U.S. Dept. of Transportation, 1977.

Cita MLA (8a ed.)

USA, National Highway Traffic Safety Administration, y USA National Highway Traffic Safety Administration. Manual for Police Traffic Services Personnel Performance Evaluation System. U.S. Dept. of Transportation, 1977.