Dyfyniad APA

American College of Emergency Physicians & Piazza, G. M. (2009). First aid manual (3rd ed.). Dorling Kindersley.

Dyfyniad Arddull Chicago

American College of Emergency Physicians and Gina M. Piazza. First Aid Manual. 3rd ed. London: Dorling Kindersley, 2009.

Dyfyniad MLA

American College of Emergency Physicians and Gina M. Piazza. First Aid Manual. 3rd ed. Dorling Kindersley, 2009.

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