Dyfyniad APA

Journal of Cognition and Development. Cambridge University Press.

Dyfyniad Arddull Chicago

Journal of Cognition and Development. Cambridge University Press.

Dyfyniad MLA

Journal of Cognition and Development. Cambridge University Press.

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