APA (7 वां संस्करण) प्रशस्ति पत्र

Copi, I. Reply to Bergmann: Irving Copi. The linguistic turn : essays in philosophical method ; with two retrospective essays.(1992).

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Copi, Irving. "Reply to Bergmann: Irving Copi." The Linguistic Turn : Essays in Philosophical Method ; with Two Retrospective Essays.(1992) .

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Copi, Irving. "Reply to Bergmann: Irving Copi." The Linguistic Turn : Essays in Philosophical Method ; with Two Retrospective Essays.(1992), .