Cita APA (7a ed.)

Pritchard, M. H., & Emerson, J. (2011). The Dark Days of Abraham Lincoln's Widow, as Revealed by Her Own Letters. Southern Illinois University Press.

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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