Cita APA (7th ed.)

Shipler, D. K. (2005). The working poor: Invisible in America. Vintage Books.

Cita Chicago (17th ed.)

Shipler, David K. The Working Poor: Invisible in America. New York: Vintage Books, 2005.

Cita MLA (9th ed.)

Shipler, David K. The Working Poor: Invisible in America. Vintage Books, 2005.