Dyfyniad APA
DOBBING, J., & ET AL. (2001). SCIENTIFIC STUDIES IN MENTAL RETARDATION. THE ROYAL SOCIETY OF MEDICINE.
Dyfyniad Arddull Chicago
DOBBING, J., and ET AL. SCIENTIFIC STUDIES IN MENTAL RETARDATION. Londres: THE ROYAL SOCIETY OF MEDICINE, 2001.
Dyfyniad MLA
DOBBING, J., and ET AL. SCIENTIFIC STUDIES IN MENTAL RETARDATION. THE ROYAL SOCIETY OF MEDICINE, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.