EndNote Online can be integrated into a word process with a functionatily called "Cite While You Write" (CWYW).
This allows you to cite sources in the approrpriate citation style as well wel automatically create the bibliography or work cited page.
Installing the CWYC plug-in creates an additional toolbar within your word processor. Additionally, you can generate custom bibliographies such as an annotated bibliography. Consult the installation instructions for both Windows and Macintosh.