Kress, W. S. (1905). Questions of Socialists and Their Answers. Cleveland.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKress, William Stephens. Questions of Socialists and Their Answers. Cleveland, 1905.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKress, William Stephens. Questions of Socialists and Their Answers. Cleveland, 1905.
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