. . . "Argumentation : the study of effective reasoning : course guidebook"@en . . . . . "Argumentation, the study of effective reasoning" . "Argumentation, the study of effective reasoning"@en . . . "Argumentation, the study of effective reasoning [sound recording]" . . . . . . . "Argumentation : the study of effective reasoning"@en . . "Study of effective reasoning"@en . . . . . . "Dr. David Zarefsky, professor of communication studies at Northwestern University, delivers lectures covering the history of rhetoric and debate as well as analysis of different types of arguments in various situations."@en . "Study of effective reasoning" . "Dr. David Zarefsky, professor of communication studies at Northwestern University, delivers lectures covering the history of rhetoric and debate as well as analysis of different types of arguments in various situations." . . "Argumentation : the study of effective reasoning" . "Lectures by Dr. David Zarefsky, Professor of Argumentation and Debate and Professor of Communication Studies, Northwestern University, cover the history of rhetoric and debate as well as analysis of different types of arguments in various situations."@en . "Lectures by Dr. David Zarefsky, Professor of Argumentation and Debate and Professor of Communication Studies, Northwestern University, cover the history of rhetoric and debate as well as analysis of different types of arguments in various situations." . . "Great courses argumentation"@en . "Teaching Company." . . "Reasoning." . . "Debates and debating." . . "Forensics (Public speaking)" . . "Rhetoric." . . . .