Carnap, R. On the character of philosophical problems: Rudolf Carnap. The linguistic turn : essays in philosophical method ; with two retrospective essays.(1992).
Čikaški stil citiranja (17. izdanje)Carnap, Rudolf. "On the Character of Philosophical Problems: Rudolf Carnap." The Linguistic Turn : Essays in Philosophical Method ; with Two Retrospective Essays.(1992) .
MLA način citiranja (8. izdanje)Carnap, Rudolf. "On the Character of Philosophical Problems: Rudolf Carnap." The Linguistic Turn : Essays in Philosophical Method ; with Two Retrospective Essays.(1992), .
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