Citation

EasyBib: The Free automatic Bibliography and Citation Maker http://www.easybib.com/

Son of Citation Machine http://citationmachine.net/

Wikipedia: Citation http://en.wikipedia.org/wiki/Citation

NoodleTools http://www.noodletools.com/

EducationWorld: Who said that? How to Cite Electronic Resources http://www.educationworld.com/a_curr/curr247.shtml