APA-viite

Heyer, P. a. U. (2019). Communication in History: Stone Age Symbols to Social Media (Seventh Edition.). Routledge.

Chicago-tyylinen lähdeviittaus

Heyer, Paul and Urquhart. Communication in History: Stone Age Symbols to Social Media. Seventh Edition. New York: Routledge, 2019.

MLA-viite

Heyer, Paul and Urquhart. Communication in History: Stone Age Symbols to Social Media. Seventh Edition. Routledge, 2019.