Cita APA (7a ed.)

Jones, R. J., & Campbelle, O. M. (1973). The youth and adult courtesy patrols of the District of Columbia: A pilot study.

Cita Chicago Style (17a ed.)

Jones, Roy J., y Olga M. Campbelle. The Youth and Adult Courtesy Patrols of the District of Columbia: A Pilot Study. Washington, D.C, 1973.

Cita MLA (8a ed.)

Jones, Roy J., y Olga M. Campbelle. The Youth and Adult Courtesy Patrols of the District of Columbia: A Pilot Study. 1973.