When you cite an authored encyclopedia entry provide the name of the author in normal form. Reverse the author's name only in the bibliography entry. Continue providing the title of the entry in quotation marks followed by the word
in, the title of the book italicized, the editor's name, and the publication information of the book. Page numbers are mentioned both in notes and bibliography entries if they are available. If you accessed the encyclopedia entry online from the library's databases, conclude providing the DOI based URL when this is available. If a DOI is not available and you accessed the book from an online database, provide the name of the database. If you accessed the book from the web and the DOI is not available then, conclude with the source URL.
When you cite entries with no particular author from well-known reference works, such as the Encylopedia Britannica or Grove Music Online cite them in notes rather than in bibliographies. For more info on how to cite major reference works consult paragraphs 14.232, 14.233, and 14.234 of the Chicago Manual.
Online database/web with DOI