Black, M. (1952). Critical Thinking: An introduction to logic and scientific Method (2nd ed.). Printice- Hall.
Chicago Style (17th ed.) ZitazioaBlack, Max. Critical Thinking: An Introduction to Logic and Scientific Method. 2nd ed. Englewood Clif.: Printice- Hall, 1952.
MLA (9th ed.) ZitazioaBlack, Max. Critical Thinking: An Introduction to Logic and Scientific Method. 2nd ed. Printice- Hall, 1952.
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