According to Turabian, major dictionaries and encyclopedias should be cited only in
notes, unless it is crucial to your argument or they are "reference works that are more specialized or less known" - here both entries are provided for your convenience.
If you do not input author, editor and publication facts, you will get footnote / parenthetical only. If you input the full info, you will get the full citation.
Since there are many variations in bibliographical conventions
between different disciplines, some courses may require articles within specific subject encyclopedias/dictionaries to be treated as "Chapters
and Other Titled Parts of a Book" - use Book entry from "Source Type" above if that is the case. Examples of specific subject encyclopedias/dictionaries include
Kittel in theology, Norton in music, etc. Check with your professor for details.