APA引文

Harford, T. (2009). Dear undercover economist: The very best letters from the dear economist column. Little Brown.

Chicago Edition Citation

Harford, Tim. Dear Undercover Economist: The Very Best Letters from the Dear Economist Column. London: Little Brown, 2009.

MLA引文

Harford, Tim. Dear Undercover Economist: The Very Best Letters from the Dear Economist Column. Little Brown, 2009.