Dunbar-Ortiz, Roxanne, 1939-, author
Beacon Press, 2014
Buku Teks
United Nations, 1990
Buku Teks
Myers, Gustavus, author
Random House, 1943
Buku Teks
Kemmerer, Donald L., author
Littlefield, Adams, 1956
Buku Teks
Rae, John B.
Mc Graw-Hill Book Company, 1949
Buku Teks