Son of Citation Machine is a citation generator that allows users to create citations by filling in information about the source. Supports MLA, APA, Turabian, and Chicago style formatting. Features include automatic citation generator based on ISBN call numbers of a book, or links to specific websites or articles. This is a great tool for citing a lot of different sources.
Ottobib is a fairly simple citation generator that uses the ISBN of a book to create the citation. It supports MLA, APA, and Chicago/Turabian formats. It's perfect for citing books but has no feature to cite electronic sources.
CiteFast is a user-friendly citation generator that supports MLA, APA, and Chicago formatting, as well as cite a variety of sources. Also helps users generate a title page.
KnightCite is a reliable citation generator that provides free services. There is an option to create an account so you have more access to privileges such as saving citations for later and alphabetizing them. Supports MLA, APA, and Chicago style formatting. Also cites a wide variety of sources including, books, anthologies, multimedia, periodicals, communications, and online sources.