Stoddard, W. O., & Holzer, H. (2007). Lincoln's White House secretary: The adventurous life of William O. Stoddard. Southern Illinois University Press.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Stoddard, William Osborn, ба Harold Holzer. Lincoln's White House Secretary: The Adventurous Life of William O. Stoddard. Carbondale: Southern Illinois University Press, 2007.
MLA -ийн эшлэл (9 дэх хэвлэлт)Stoddard, William Osborn, ба Harold Holzer. Lincoln's White House Secretary: The Adventurous Life of William O. Stoddard. Southern Illinois University Press, 2007.
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