- Johnstone , Henry W. Jr. 1959 . Philosophy and Argument 13 – 14 . University Park, Pa.
- 1966 . “Debate as Method: Limitations and Values,” . ST , XV : 180 – 185 .
- Aristotle . Rhetorica , 1355b
- Ehninger , Douglas and Brockriede , Wayne . 1963 . Decision by Debate 18 – 19 . New York
- Johnstone , Henry W. Jr. 1965 . “Some Reflections on Argumentation,” . In Philosophy, Rhetoric, and Argumentation Edited by: Natanson , Maurice and Johnstone , Henry W. Jr. 1 – 9 . University Park, Pa.
- Natanson , Maurice . “The Claims of Immediacy,” . 10 – 19 . Ibid.
- O'Neill , James M. , Laycock , Craven and Scales , Robert L. 1923 . Argumentation and Debate 33 – 41 . New York
- Ehninger , Douglas . 1968 . “Validity as Moral Obligation,” . Southern Speech Journal , XXXIII : 215 – 222 .
- Auer , J. Jeffery , ed. 1969 . The Rhetoric of Our Times 165 – 171 . New York
- Waismann , Friedrich . 1956 . “How I See Philosophy,” . In Contemporary British Philosophy , 3rd series Edited by: Lewis , H. D. London
- Ayer , A. J. , ed. 1959 . Logical Positivism 345 – 380 . Glencoe, Ill.
- Passmore , John . 1961 . Philosophical Reasoning 36 New York
- Adler , Mortimer . 1927 . Dialectic 101 105 198 217 New York
- Rhetorica ad Herennium , I xvi – xvii .
- Baird , A. Craig . 1952 . “Responsibilities of Free Communication,” . Vital Speeches , Sept. 1 : 699 – 701 .
- Schouls , Peter A. 1969 . “Communication, Argumentation, and Presupposition in Philosophy,” . Philosophy and Rhetoric , II Fall : 183 – 199 .
- Johnstone , Henry W. Jr. 1954 . “The Nature of Philosophical Controversy,” . The Journal of Philosophy , LI May 13 : 295 – 296 .
- Buber , Martin . 1923 . Ich und Du Leipzig
- Smith , Ronald Gregor , ed. 1958 . I and Thou. , 2nd ed. New York With a Postscript by the Author Added.
- Maritain , Jacques . 1959 . Distinguish to Unite Edited by: Phelan , G. New York
- Fitzgerald , J. , ed. 1947 . The Person and the Common Good New York
- Marcel , Gabriel . 1955 . The Decline of Wisdom New York
- Kierkegaard , Soren A. 1955 . Meditations Edited by: Croxall , T. H. Philadelphia
- Sartre , Jean‐Paul . 1967 . “Consciousness of Self and Knowledge of Self,” . In Readings in Existential Phenomenology Edited by: Lawrence , N. and O'Connor , D. Englewood Cliffs, N.J.
- Williams , F. and Kirkpatrick , R. , eds. 1957 . The Transcendence of the Ego New York
- Johnstone . Philosophy, Rhetoric, and Argumentation , 3
Speech Monographs
Volume 37, 1970 - Issue 2