APA (7e ed.) Bronvermelding

Barrett, R. P. (1986). Severe behavior disordered in the mentally retarded: Non drug approaches to treatment. Plenum Press.

Chicago (17e ed.) Bronvermelding

Barrett, Rowland P. Severe Behavior Disordered in the Mentally Retarded: Non Drug Approaches to Treatment. New York: Plenum Press, 1986.

MLA (9e ed.) Bronvermelding

Barrett, Rowland P. Severe Behavior Disordered in the Mentally Retarded: Non Drug Approaches to Treatment. Plenum Press, 1986.