Many websites offer fill-in-the-blank citation formatting. Here are some of the best.
Note that "best" doesn't mean flawless! Check your work for accuracy with a citation guide.
Quickly make citations for most sources. Displays all of the citation fields at once for a given citation form.
Cite just about anything. Asks one question per page for each citation.
Create an account to save your bibliographies and use virtual notecards.