Lipman, M. (1977). Discovering philosophy (2nd edition.). Prentice- Hall Inc..
Chicago Edition CitationLipman, Mathew. Discovering Philosophy. 2nd edition. New Jersey: Prentice- Hall Inc., 1977.
MLA Edition CitationLipman, Mathew. Discovering Philosophy. 2nd edition. Prentice- Hall Inc., 1977.
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