#1LIB1REF is a worldwide event were librarians add citations to Wikipedia articles. I invite everyone to participate and / or spread the word. 

You don't even have to have a Wikipedia log in to edit. Just use your knowledge and your library's resources to make the world's biggest, most heavily used encyclopedia even better. Regular edits count too, not just citations. If you contribute, feel free to use #1LIB1REF hashtag on social media. 

Details here: https://meta.wikimedia.org/wiki/The_Wikipedia_Library/1Lib1Ref