These specific subject headings may vary slightly depending on the resource used. Ask a librarian to help you locate a subject heading. Subject headings are important to use when searching print and most electronic sources. Identify the key words of your topic statement. These words are the main concepts of your topic statement.
Key words are most important when searching electronic sources, especially full-text titles.
Different indexes may use different terms. If primary search terms locate few resources, try synonyms or related words as key words or subject headings. Then do a search with the subject headings to retrieve additional information. L. Erlbaum Associates, 1981.