Polenberg, R. (1980). One nation divisible: Class, race and ethnicity in the United States since 1938. Harmondsworth: Penguin Books.
Citace podle Chicago (17th ed.)Polenberg, Richard. One Nation Divisible: Class, Race and Ethnicity in the United States Since 1938. Harmondsworth: Penguin Books, 1980.
Citace podle MLA (8th ed.)Polenberg, Richard. One Nation Divisible: Class, Race and Ethnicity in the United States Since 1938. Harmondsworth: Penguin Books, 1980.
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