Cita APA (7a ed.)

Bullock, R., Little, M., & Millham, S. (1998). Secure treatment outcomes: The care careers of very difficult adolescents. Ashgate.

Cita Chicago Style (17a ed.)

Bullock, Roger, Michael Little, y Spencer Millham. Secure Treatment Outcomes: The Care Careers of Very Difficult Adolescents. Aldershot [u.a.]: Ashgate, 1998.

Cita MLA (9a ed.)

Bullock, Roger, et al. Secure Treatment Outcomes: The Care Careers of Very Difficult Adolescents. Ashgate, 1998.