Cita APA (7a ed.)

Carwardine, R. (2017). Lincoln's sense of humor. Southern Illinois University Press.

Cita Chicago Style (17a ed.)

Carwardine, Richard. Lincoln's Sense of Humor. Carbondale: Southern Illinois University Press, 2017.

Cita MLA (8a ed.)

Carwardine, Richard. Lincoln's Sense of Humor. Southern Illinois University Press, 2017.