Brinton, Crane, 1898-1968
Prentice-Hall, 1964
Buku Teks SO
Toynbee, Arnold J.
Meridian Books, 1958
Buku Teks SO
Columbia University Press, 1946
Buku Teks SO
edited by Brian Tierney, Donald Kagan and L. Pearce Williams; consulting editor, Eugene Rice
Random House, 1968
Buku Teks SO
Viorst, Milton
Chilton Book, 1965
Buku Teks SO