Moore, B. N., & Parker, R. (2008). Critical thinking (9th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Moore, Brooke Noel, agus Richard Parker. Critical Thinking. 9th ed. Boston: McGraw-Hill, 2008.
Lua MLA (9ú heag.)Moore, Brooke Noel, agus Richard Parker. Critical Thinking. 9th ed. McGraw-Hill, 2008.
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