APA-viite

Krugman, P. R. (1999). The accidental theorist: And other dispatches from the dismal science. Penguin Books.

Chicago-tyylinen lähdeviittaus

Krugman, Paul R. The Accidental Theorist: And Other Dispatches from the Dismal Science. London: Penguin Books, 1999.

MLA-viite

Krugman, Paul R. The Accidental Theorist: And Other Dispatches from the Dismal Science. Penguin Books, 1999.