Held, D. (1980). Introduction to critical theory: Horkheimer to Habermas. University of California Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHeld, David. Introduction to Critical Theory: Horkheimer to Habermas. University of California Press, 1980.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHeld, David. Introduction to Critical Theory: Horkheimer to Habermas. University of California Press, 1980.
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