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Materials which are referred to for brief or general information. Examples include:
Background or overview synopses (encyclopedia)
Reference sources - how to search them
Reference resources are organized in an order that aids searching (alphabetically, chronologically, etc). Most include an index which points users to the appropriate section. Tips for searching:
Decide on your search terms
Try searching with them
If not satisfied with the results, try searching a synonym or related idea
Things to watch out for:
Is the computer searching only the title/header of the entries or the full-text of the information? You will get more results, but more of them will be irrelabent if you are searching the full-text.
Are you searching for a proper noun (name, place,...)? Make sure that the spelling is correct and try variations if it originated in a foreign language.
Searching for something by date? This is trickier than it sounds. If possible, search for an event name or topic rather than a date, e.g. civil rights movement or hippies or flower children rather than 1960s.