R.W, H. (1981). Mortgage Banking. Morgage bankers Association.
Chicago Edition CitationR.W, Helgerson. Mortgage Banking. America: Morgage bankers Association, 1981.
MLA引文R.W, Helgerson. Mortgage Banking. Morgage bankers Association, 1981.
警告：这些引文格式不一定是100％准确.