Dyfyniad APA
(1993). Gale directory of publications and broadcast media: Update. Gale Research Inc..
Dyfyniad Arddull Chicago
Gale Directory of Publications and Broadcast Media: Update. Detroit, Michigan: Gale Research Inc., 1993.
Dyfyniad MLA
Gale Directory of Publications and Broadcast Media: Update. Gale Research Inc., 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.