Cita APA (7a ed.)

Ball, J. C., & Ross, A. (1991). The effectiveness of methadone maintenance treatment: Patients, programs, services, and outcome. Springer.

Cita Chicago Style (17a ed.)

Ball, John C., y Alan Ross. The Effectiveness of Methadone Maintenance Treatment: Patients, Programs, Services, and Outcome. New York: Springer, 1991.

Cita MLA (9a ed.)

Ball, John C., y Alan Ross. The Effectiveness of Methadone Maintenance Treatment: Patients, Programs, Services, and Outcome. Springer, 1991.