APA (7th ed.) Citation

O'Brien, J. C. (1869). Letter, To: "Dear Frank" From: J.C. O'Brien, February 9, 1869.

Chicago Style (17th ed.) Citation

O'Brien, John C. Letter, To: "Dear Frank" From: J.C. O'Brien, February 9, 1869. 1869.

MLA (8th ed.) Citation

O'Brien, John C. Letter, To: "Dear Frank" From: J.C. O'Brien, February 9, 1869. 1869.

Warning: These citations may not always be 100% accurate.