APA استشهاد

Wallis, R. (1990). Known world of broadcast news, international news and the electronic media. Routledge and Kegan Paul Ltd.

استشهاد بنمط شيكاغو

Wallis, R. Known World of Broadcast News, International News and the Electronic Media. London: Routledge and Kegan Paul Ltd, 1990.

MLA استشهاد

Wallis, R. Known World of Broadcast News, International News and the Electronic Media. Routledge and Kegan Paul Ltd, 1990.