As you do your research, make sure to keep track of the information that you will need to identify your sources in your Works Cited. Remember that information may come from many places including books, magazines, encyclopedias, or Internet sites. Regardless of where you found your information, your sources need to be clearly and correctly identified in your Works Cited. Each source that you use will be mentioned as a separate entry or citation. For most books, you will find the information needed for the citations on either the title page, or the reverse side of the title page.
These are some good sources for citation makers on the web.
EasyBib : You can set up your own account or use our gmail account.