Cita APA (7a ed.)

Oberg, M. L. (2015). The Negro in the Urban Transit Industry. University of Pennsylvania Press.

Cita Chicago Style (17a ed.)

Oberg, Michael Leroy. The Negro in the Urban Transit Industry. Philadelphia: University of Pennsylvania Press, 2015.

Cita MLA (8a ed.)

Oberg, Michael Leroy. The Negro in the Urban Transit Industry. University of Pennsylvania Press, 2015.