If you don't subscribe to AOL and would like a search done for you, come by the Trexler Library reference desk or dial x3600 and ask for Kelly, Amy, or Martha. Another good place to find an archive of closing prices is FinancialWeb Stock History . Consult the book's introduction for an explanation on how different ratios are calculated. Selected industry data can also be found in the Industry portion of Value Line . See also Business Source Elite and the Business News section of Lexis-Nexis .
Every publisher figures statistical data differently.
For this reason, among others, documentation is important.