Dyfyniad APA
Heathcote, P. (1999). 'A' Level ICT (3rd ed.). Payne- Gallway.
Dyfyniad Arddull Chicago
Heathcote, P.M. 'A' Level ICT. 3rd ed. Ipswich, Great Britain: Payne- Gallway, 1999.
Dyfyniad MLA
Heathcote, P.M. 'A' Level ICT. 3rd ed. Payne- Gallway, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.