Lincoln, W. Bruce
Anchor Books, 1987
Buku Teks SO
edited by Henry Steele Commager
Appleton-Century-Crofts, 1949
Buku Referensi
by Albert P. Blaustein, Jay Sigler, Benjamin R. Beede, with Wayne E. Olson
Oceana Publications, 1977
Buku Referensi
edited for the Society of American Historians by Courtlandt Canby & Nancy E. Gross
New American Library, 1954
Buku Teks SO
Revill, J.C.
Longman, 1959
Buku Teks SO