Conservation in the United States
by A. F. Gustafson [and others]
Comstock Publishing Associates, 1961
 Buku Teks
Myers, Gustavus, author
History of bigotry in the United States
Random House, 1943
 Buku Teks
United States relations with China
Departement of Stetes Based, 1949
 Buku Teks
Reischauer, Edwin O., author
The United States and Japan
Harvard University Press, 1950
 Buku Teks
Myers, Margaret G., author
A Financial history of the United States
Columbia University Press , 1970
 Buku Teks
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