Spencer, H. (1967). Evolution of Society: Selection from Herbert Spencer's principles of sociology ed. and with an introd. by Robert L. Carneiro. University of Chicago Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpencer, Herbert. Evolution of Society: Selection from Herbert Spencer's Principles of Sociology Ed. and with an Introd. by Robert L. Carneiro. University of Chicago Press, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSpencer, Herbert. Evolution of Society: Selection from Herbert Spencer's Principles of Sociology Ed. and with an Introd. by Robert L. Carneiro. University of Chicago Press, 1967.
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