Cita APA (7a ed.)

Gabbard, S. V., & Holzer, H. (2013). 1863: Lincoln's Pivotal Year. Southern Illinois University.

Cita Chicago Style (17a ed.)

Gabbard, Sara Vaughn, y Harold Holzer. 1863: Lincoln's Pivotal Year. Carbondale: Southern Illinois University, 2013.

Cita MLA (8a ed.)

Gabbard, Sara Vaughn, y Harold Holzer. 1863: Lincoln's Pivotal Year. Southern Illinois University, 2013.