Dyfyniad APA

Oxford university press. (1993). Oxford dictionary of abbreviations (1st.). Oxford.

Dyfyniad Arddull Chicago

Oxford university press. Oxford Dictionary of Abbreviations. 1st. New York: Oxford, 1993.

Dyfyniad MLA

Oxford university press. Oxford Dictionary of Abbreviations. 1st. Oxford, 1993.

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