Dyfyniad APA

American Academy of Pediatrics. (2002). Pediatrics Nº 1. American Academy.

Dyfyniad Arddull Chicago

American Academy of Pediatrics. Pediatrics Nº 1. Barcelona: American Academy, 2002.

Dyfyniad MLA

American Academy of Pediatrics. Pediatrics Nº 1. American Academy, 2002.

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