APA引文

Pritchard, M. H., & Emerson, J. (2011). The dark days of Abraham Lincoln's widow, as revealed by her own letters. Southern Illinois University Press.

Chicago Style (17th ed.) Citation

Pritchard, Myra Helmer, and Jason Emerson. The Dark Days of Abraham Lincoln's Widow, as Revealed by Her Own Letters. Carbondale: Southern Illinois University Press, 2011.

MLA引文

Pritchard, Myra Helmer, and Jason Emerson. The Dark Days of Abraham Lincoln's Widow, as Revealed by Her Own Letters. Southern Illinois University Press, 2011.