Cita APA (7a ed.)

Pittenger, M. (2012). Class Unknown: Undercover Investigations of American Work and Poverty from the Progressive Era to the Present. New York University Press.

Cita Chicago Style (17a ed.)

Pittenger, Mark. Class Unknown: Undercover Investigations of American Work and Poverty from the Progressive Era to the Present. New York: New York University Press, 2012.

Cita MLA (8a ed.)

Pittenger, Mark. Class Unknown: Undercover Investigations of American Work and Poverty from the Progressive Era to the Present. New York University Press, 2012.