O`Hara, John
A mug's game : a history of gaming and betting in Australia
New South Wales University Press, 1988
 Buku Teks
Concise dictionary of American biography
Charles Scribner's Sons, 1964
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Myrdal, Gunnar, 1898-
An American dilemma: the Negro problem and modern democracy
Harper & Brothers , 1944
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Cummings, Paul
A dictionary of contemporary American artists
St. Martin's Press, 1966
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American political leaders 1789-2000
Kongressional Quarterly, 2000
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