Stoddard, W. O., & Holzer, H. (2007). Lincoln's White House secretary: The adventurous life of William O. Stoddard. Southern Illinois University Press.
Cita Chicago (17th ed.)Stoddard, William Osborn, i Harold Holzer. Lincoln's White House Secretary: The Adventurous Life of William O. Stoddard. Carbondale: Southern Illinois University Press, 2007.
Cita MLA (9th ed.)Stoddard, William Osborn, i Harold Holzer. Lincoln's White House Secretary: The Adventurous Life of William O. Stoddard. Southern Illinois University Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.