O'Neill, J. (1868). Letter, To: "Dear Sir & Bro." From: John O'Neill, October 6, 1868.
Čikaški stil citiranja (17. izdanje)O'Neill, John. Letter, To: "Dear Sir & Bro." From: John O'Neill, October 6, 1868. 1868.
MLA način citiranja (8. izdanje)O'Neill, John. Letter, To: "Dear Sir & Bro." From: John O'Neill, October 6, 1868. 1868.
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