White, G. (1867). His Holiness Pope Pius IX. London.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWhite, George. His Holiness Pope Pius IX. London, 1867.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWhite, George. His Holiness Pope Pius IX. London, 1867.
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