| Most periodical indexes organize their
records using a list of approved subject
headings. This allows you to find all the
articles about your topic under one term. How
do you find the approved subject headings? Some
indexes provide a list of subject headings. This
list is called a subject guide or a thesaurus.
If you search for a word that is not in the
index, it may suggest an approved subject
heading you could use.

In this example, there are 1,712 articles
about the Internet in this database. If you
looked for articles using the words
Information Superhighway, this database
would direct you to use the subject heading
Internet. |