Smith, W. G. (1900). George Allen, LL.D.: Read before the Society of the Alumni of the University of Pennsylvania at Houston Hall, June 13, 1900. Philadelphia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSmith, Walter George. George Allen, LL.D.: Read Before the Society of the Alumni of the University of Pennsylvania at Houston Hall, June 13, 1900. Philadelphia, 1900.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSmith, Walter George. George Allen, LL.D.: Read Before the Society of the Alumni of the University of Pennsylvania at Houston Hall, June 13, 1900. Philadelphia, 1900.
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