Voices of Democracy: The U.S. Oratory Collection (Center for Political Communication and Civic Leadership at the University of
Maryland and the Center for Democratic Deliberation at the Pennsylvania State University)
Thomas L. Tedford and Dale A. Herbeck Freedom of Speech in the United States, 8th ed.
State College, PA: Strata Publishing, Inc., 2017 http://tedford-herbeck-free-speech.com
