As a Background Source
The purpose of an encyclopedia is to provide basic information about a topic. Within the article, you should encounter important terms, the names of notable people, and background information on the topic. This can help you establish a foundation for your research.
Never Cite an Encyclopedia Article
This is something that is never done. Never!
Use the Bibliography at the End of an Article
Sources included are considered classic books and articles on the topic.
Print and Electronic Resources