Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.