THE AMERICAN DEMOCRACY THIRD EDITION
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SOCIAL PROBLEMS IN AMERICAN SOCIETY
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responding to emergencies.2001 年出版504 页ISBN：1584801018
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THE MUSIC OF AMERICAN FOLK SONG AND SELECTED OTHER WRITINGS ON AMERICAN FOLK MUSIC RUTH CRAWFORD SEE
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American democracy in world perspective
William Ebenstein ... [et al.]1980 年出版618 页ISBN：
