Hacker, Louis M., author
Columbia University Press, 1947
Buku Teks
Hacker, Louis M., author
Columbia University Press, 1947.
Buku Teks
edited by Frank Freidel and Norman Pollack
Rand McNally, 1963
Buku Teks
Alden, John Richard, author
Harper & Row Publishers, 1963
Buku Teks
Adams, James Truslow, author
1946
Buku Referensi