Mary Brackett Willcox papers MC 10. Philadelphia Archdiocesan Historical Research Center.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMary Brackett Willcox Papers MC 10. Philadelphia Archdiocesan Historical Research Center.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMary Brackett Willcox Papers MC 10. Philadelphia Archdiocesan Historical Research Center.
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