Cita APA (7a ed.)

Lieberson, S. (1980). A piece of the pie: Blacks and white immigrants since 1880. Univ. of California Press.

Cita Chicago Style (17a ed.)

Lieberson, Stanley. A Piece of the Pie: Blacks and White Immigrants Since 1880. Berkeley [u.a.]: Univ. of California Press, 1980.

Cita MLA (9a ed.)

Lieberson, Stanley. A Piece of the Pie: Blacks and White Immigrants Since 1880. Univ. of California Press, 1980.