Dyfyniad APA

Carr, J. H., & Yule, W. (1980). Behaviour modification for the mentally handicapped. Croom Helm.

Dyfyniad Arddull Chicago

Carr, Janet H., and William Yule. Behaviour Modification for the Mentally Handicapped. London: Croom Helm, 1980.

Dyfyniad MLA

Carr, Janet H., and William Yule. Behaviour Modification for the Mentally Handicapped. Croom Helm, 1980.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.