Cita APA (7a ed.)

Schroeder, D. J., & Lombardo, F. A. (1986). How to prepare for the police officer: Examination including transit and housing officer (2. ed., [newly rev. and updated].). Barron's Educational Series.

Cita Chicago Style (17a ed.)

Schroeder, Donald J., y Frank A. Lombardo. How to Prepare for the Police Officer: Examination Including Transit and Housing Officer. 2. ed., [newly rev. and updated]. Woodbury, NY [u.a.]: Barron's Educational Series, 1986.

Cita MLA (8a ed.)

Schroeder, Donald J., y Frank A. Lombardo. How to Prepare for the Police Officer: Examination Including Transit and Housing Officer. 2. ed., [newly rev. and updated]. Barron's Educational Series, 1986.