Marshall, T. W. M. (1873). The "Old Catholics" at Cologne; a sketch in three scenes. London.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMarshall, T. W. M. The "Old Catholics" at Cologne; a Sketch in Three Scenes. London, 1873.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMarshall, T. W. M. The "Old Catholics" at Cologne; a Sketch in Three Scenes. London, 1873.
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