Ruby, L. (1969). The art of making sense: A guide to logical thinking (2nd ed.). Angus & Robertson.
Chicago Style aipamenaRuby, Lionel. The Art of Making Sense: A Guide to Logical Thinking. 2nd ed. London: Angus & Robertson, 1969.
MLA aipamenaRuby, Lionel. The Art of Making Sense: A Guide to Logical Thinking. 2nd ed. Angus & Robertson, 1969.
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