Hallett, G. H., & Hoag, C. G. (1940). Proportional representation, the key to democracy (2d and rev. ed., 1940.). National municipal league.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHallett, George Hervey, और Clarence Gilbert Hoag. Proportional Representation, the Key to Democracy. 2d and rev. ed., 1940. New York city: National municipal league, 1940.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHallett, George Hervey, और Clarence Gilbert Hoag. Proportional Representation, the Key to Democracy. 2d and rev. ed., 1940. National municipal league, 1940.
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