APA aipamena

O'Brien, J. C. (1867). Note, To: "Dear Frank" From: J.C. O'Brien, January 12, 1867.

Chicago Style aipamena

O'Brien, John C. Note, To: "Dear Frank" From: J.C. O'Brien, January 12, 1867. 1867.

MLA aipamena

O'Brien, John C. Note, To: "Dear Frank" From: J.C. O'Brien, January 12, 1867. 1867.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.