Cita APA (7th 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 (17th 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 (9th ed.)
Pittenger, Mark. Class Unknown: Undercover Investigations of American Work and Poverty from the Progressive Era to the Present. New York University Press, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.