Herlihy, D. J. (1951). Battle Against Bigotry: Father Peter C. Yorke and the American Protective Association in San Francisco, 1893-1897. Philadelphia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHerlihy, David Joseph. Battle Against Bigotry: Father Peter C. Yorke and the American Protective Association in San Francisco, 1893-1897. Philadelphia, 1951.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHerlihy, David Joseph. Battle Against Bigotry: Father Peter C. Yorke and the American Protective Association in San Francisco, 1893-1897. Philadelphia, 1951.
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