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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPennsylvania Historical Association. Pennsylvania History. [University Park, Pa., etc.: Pennsylvania Historical Association, etc.].
एमएलए (8वां संस्करण) प्रशस्ति पत्रPennsylvania Historical Association. Pennsylvania History. Pennsylvania Historical Association, etc.].
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