BibMe - is an automated citation creator and bibliography generator. it can save you loads of time building and formatting your references, time that is understandably vauable and would be better served working on your paper.

Citefast - is a free APA citation generator. Generate and manage your references, in-text citations and title pages in APA 6th edition.

Citation Machine - is essentially a works cited generator that accesses information from across the web, drawing the relevant information into a fully-formatted bibliography that clearly presents all of the sources that have contributed to your work.

OttoBib - Generate bibliographies/works cited pages for books - just enter the ISBN(s) of the book(s) you have cited in your paper.