Cita APA (7a ed.)

Krugman, P. R. (2007). The conscience of a liberal. W.W. Norton.

Cita Chicago Style (17a ed.)

Krugman, Paul R. The Conscience of a Liberal. New York [etc.]: W.W. Norton, 2007.

Cita MLA (9a ed.)

Krugman, Paul R. The Conscience of a Liberal. W.W. Norton, 2007.