(Pa.), C. C. o. P. (1890). Constitution and By-Laws. Columbus Club of Pittsburgh. Pittsburgh, Pa..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र(Pa.), Columbus Club of Pittsburgh. Constitution and By-Laws. Columbus Club of Pittsburgh. Pittsburgh, Pa., 1890.
एमएलए (8वां संस्करण) प्रशस्ति पत्र(Pa.), Columbus Club of Pittsburgh. Constitution and By-Laws. Columbus Club of Pittsburgh. Pittsburgh, Pa., 1890.
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