Dyfyniad APA

The Journal of the Association for the Severely Handicapped.

Dyfyniad Arddull Chicago

The Journal of the Association for the Severely Handicapped.

Dyfyniad MLA

The Journal of the Association for the Severely Handicapped.

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