Clipper, J. (1900). Unpublished letters. John Clipper to Rev. S. S. Cooper. Records of the American Catholic Historical Society of Philadelphia. Volume XI. Pages 70-71. Philadelphia : American Catholic Historical Society of Philadelphia.
Čikaški stil citiranja (17. izdanje)Clipper, John. Unpublished Letters. John Clipper to Rev. S. S. Cooper. Records of the American Catholic Historical Society of Philadelphia. Volume XI. Pages 70-71. Philadelphia : American Catholic Historical Society of Philadelphia, 1900.
MLA način citiranja (8. izdanje)Clipper, John. Unpublished Letters. John Clipper to Rev. S. S. Cooper. Records of the American Catholic Historical Society of Philadelphia. Volume XI. Pages 70-71. Philadelphia : American Catholic Historical Society of Philadelphia, 1900.
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