Gibbons, J. (1898). Episcopal seal, From: James Gibbon, Archbishop of Baltimore, May 30, 1898.
Chicago Style (17. basım) AtıfGibbons, James. Episcopal Seal, From: James Gibbon, Archbishop of Baltimore, May 30, 1898. 1898.
MLA (8th ed.) AtıfGibbons, James. Episcopal Seal, From: James Gibbon, Archbishop of Baltimore, May 30, 1898. 1898.
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