A comprehensive on-line historical database service that encompasses a broad range of financial entities and instruments with global geographical coverage. Includes information on interest rates and exchange rates, equities, bonds, commodities, exchanges, company financials, mutual funds (unit trusts), futures and options, etc.
User guide:
http://www.library.hbs.edu/helpsheets/datastreamhelpmenu.html
If there is no access, the program is being used on the station in the Business School