Cita APA

Heffner, R. D. (1954). A documentary history of the united states. The New American Library.

Citación estilo Chicago

Heffner, Richard D. A Documentary History of the United States. New York: The New American Library, 1954.

Cita MLA

Heffner, Richard D. A Documentary History of the United States. New York: The New American Library, 1954.

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