Get Mendeley

Create account at: https://www.mendeley.com/
Download desktop application: https://www.mendeley.com/download-desktop/
Download mobile application: iOS, Google Play

Mendeley Features

Cost Free. Pay for more PDF storage.
Styles Many citation styles
Works With Microsoft Word
Storage 2GB free
PDF Reader Yes
Sharing PDF sharing limited to 5 groups; Unlimited citation sharing

Comparison of citation managers

Mendeley Support

Mendeley guides and tutorials from Mendeley.com
Citation manager workshops at UMN
Mendeley Support Center for technical issues and errors
Contact a librarian for training and on-campus support