End Note

Endnote is a very helpful bibliography search and creation tool for students and others who frequently write papers. Endnote will search for bibliographical references online and will format them to your specifications (all common manuscript styles) as you write, saving potentially hours of time for each paper. You can create and store your own
bibliographic library for use and reuse, paper after paper, for years to come.

http://www.endnote.com/