Dyfyniad APA

American Academy of Pediatrics. (2003). Pediatrics Nº 2. American Academy.

Dyfyniad Arddull Chicago

American Academy of Pediatrics. Pediatrics Nº 2. Barcelona: American Academy, 2003.

Dyfyniad MLA

American Academy of Pediatrics. Pediatrics Nº 2. American Academy, 2003.

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