Latin America, the United States, and the Inter-American System
Westview Press, 1980
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Risjord, Norman K.
America a history of the United States
Prentice-Hall, 1985
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The Pharmacopeia of the United States of America
Board of Trusless, 1960
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America : a celebration of the United States
Rand McNally and Company.
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Education in the United States of America
Washington U.S. Department of Health, Education, and Welfare 1955
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