Dyfyniad APA

Action for Libraries. Utg: Bibliographical Center for Research.

Dyfyniad Arddull Chicago

Action for Libraries. Utg: Bibliographical Center for Research.

Dyfyniad MLA

Action for Libraries. Utg: Bibliographical Center for Research.

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