Cita APA (7th ed.)

Shell Ellen Ruppel. (2009). Cheap: High Cost of Discount Culture. Penguin Books.

Cita Chicago (17th ed.)

Shell Ellen Ruppel. Cheap: High Cost of Discount Culture. Penguin Books, 2009.

Cita MLA (9th ed.)

Shell Ellen Ruppel. Cheap: High Cost of Discount Culture. Penguin Books, 2009.