Lerner, Max, author
America as civilazation life and thought in The United States today
Simon and Schuster, 1957
 Buku Teks
Risjord, Norman K., author
America a history of the United States
Prentice-Hall, 1985
 Buku Teks
Stuart, Graham Henry, 1887-, author
Latin America and the United States
Appleton-Century-Crofts, 1955
 Buku Teks
America : a celebration of the United States
Rand McNally and Company.
Rand Mcnally & Company, 2006
 Buku Teks
Education in the United States of America
Washington U.S. Department of Health, Education, and Welfare 1955
 Buku Teks
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