Williamson, J. (1971). The choice of a pivot for parities. International Finance Section, Princeton University.
Chicago-viite (17. p.)Williamson, John. The Choice of a Pivot for Parities. Princeton, N.J: International Finance Section, Princeton University, 1971.
MLA-viite (9. p.)Williamson, John. The Choice of a Pivot for Parities. International Finance Section, Princeton University, 1971.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.