Dyfyniad APA

(1990). American perspectives: The United States in the modern age. Washington: United States Information Agency.

Dyfyniad Arddull Chicago

American Perspectives: The United States in the Modern Age. Washington: United States Information Agency, 1990.

Dyfyniad MLA

American Perspectives: The United States in the Modern Age. Washington: United States Information Agency, 1990.

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