Crowley, D. J., & Heyer, P. (2011). Communication in history: Technology, culture, society (6th ed.). Allyn & Bacon/Pearson.
Chicago-viite (17. p.)Crowley, D. J., ja Paul Heyer. Communication in History: Technology, Culture, Society. 6th ed. Boston, MA: Allyn & Bacon/Pearson, 2011.
MLA-viite (9. p.)Crowley, D. J., ja Paul Heyer. Communication in History: Technology, Culture, Society. 6th ed. Allyn & Bacon/Pearson, 2011.
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