Dyfyniad APA

(1992). Journal of intellectual disability research: JIDR. Blackwell Scientific on behalf of the Royal Society for Mentally Handicapped Children and Adults.

Dyfyniad Arddull Chicago

Journal of Intellectual Disability Research: JIDR. Oxford, England: Blackwell Scientific on behalf of the Royal Society for Mentally Handicapped Children and Adults, 1992.

Dyfyniad MLA

Journal of Intellectual Disability Research: JIDR. Blackwell Scientific on behalf of the Royal Society for Mentally Handicapped Children and Adults, 1992.

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