Shell Ellen Ruppel. (2009). Cheap: High Cost of Discount Culture. Penguin Books.
Čikaški stil citiranja (17. izdanje)Shell Ellen Ruppel. Cheap: High Cost of Discount Culture. Penguin Books, 2009.
MLA način citiranja (9. izdanje)Shell Ellen Ruppel. Cheap: High Cost of Discount Culture. Penguin Books, 2009.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.