Dyfyniad APA

BMJ Mental Health | BMJ Publishing Group. Cambridge University Press.

Dyfyniad Arddull Chicago

BMJ Mental Health | BMJ Publishing Group. Cambridge University Press.

Dyfyniad MLA

BMJ Mental Health | BMJ Publishing Group. Cambridge University Press.

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