Cita APA (7a ed.)

Polenberg, R. (1980). One nation divisible: Class, race and ethnicity in the United States since 1938. Harmondsworth: Penguin Books.

Cita Chicago Style (17a ed.)

Polenberg, Richard. One Nation Divisible: Class, Race and Ethnicity in the United States Since 1938. Harmondsworth: Penguin Books, 1980.

Cita MLA (8a ed.)

Polenberg, Richard. One Nation Divisible: Class, Race and Ethnicity in the United States Since 1938. Harmondsworth: Penguin Books, 1980.