Cita APA (7a ed.)

Barrett, R. P. (1986). Severe behavior disorders in the mentally retarded: Nondrug approaches to treatment. Plenum Publ.

Cita Chicago Style (17a ed.)

Barrett, Rowland P. Severe Behavior Disorders in the Mentally Retarded: Nondrug Approaches to Treatment. New York [u.a.]: Plenum Publ, 1986.

Cita MLA (8a ed.)

Barrett, Rowland P. Severe Behavior Disorders in the Mentally Retarded: Nondrug Approaches to Treatment. Plenum Publ, 1986.