Gale directory of publications and broadcast media
MLA
Gale Directory of Publications and Broadcast Media. Detroit, Mich.: Gale Research Co., 1990-
APA, 7th edition
(1990-). Gale directory of publications and broadcast media. Detroit, Mich.: Gale Research Co
Chicago, 17th edition
Gale directory of publications and broadcast media. Detroit, Mich.: Gale Research Co., 1990-