Ober, J., Carnes, M. C., & Norman, N. J. (2016). The threshold of democracy: Thens in 403 b.c. (Fourth edition.). W.W. Norton & Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOber, Josiah, Mark C. Carnes, और Naomi J. Norman. The Threshold of Democracy: Thens in 403 B.c. Fourth edition. New York: W.W. Norton & Company, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOber, Josiah, et al. The Threshold of Democracy: Thens in 403 B.c. Fourth edition. W.W. Norton & Company, 2016.
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