Williamson, J. (1971). The choice of a pivot for parities. International Finance Section, Princeton University.
芝加哥风格引文Williamson, John. The Choice of a Pivot for Parities. Princeton, N.J: International Finance Section, Princeton University, 1971.
MLA引文Williamson, John. The Choice of a Pivot for Parities. International Finance Section, Princeton University, 1971.
警告：这些引文格式不一定是100％准确.