Heuser, H. J. (1895). Some forgotten records of Prince Demetrius Gallitzin. Records of the American Catholic Historical Society of Philadelphia. Volume VI. 450-458. Philadelphia : American Catholic Historical Society of Philadelphia.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিHeuser, Herman J. Some Forgotten Records of Prince Demetrius Gallitzin. Records of the American Catholic Historical Society of Philadelphia. Volume VI. 450-458. Philadelphia : American Catholic Historical Society of Philadelphia, 1895.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিHeuser, Herman J. Some Forgotten Records of Prince Demetrius Gallitzin. Records of the American Catholic Historical Society of Philadelphia. Volume VI. 450-458. Philadelphia : American Catholic Historical Society of Philadelphia, 1895.
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