Williams, B. (2004). Debt for sale: A social history of the credit trap. University of Pennsylvania Press.
芝加哥风格引文Williams, Brett. Debt for Sale: A Social History of the Credit Trap. Philadelphia: University of Pennsylvania Press, 2004.
MLA引文Williams, Brett. Debt for Sale: A Social History of the Credit Trap. University of Pennsylvania Press, 2004.
警告：这些引文格式不一定是100％准确.