Awesome
CSL-Styles Gem
The csl-styles gem includes all Citation Style Language (CSL) styles and locale files from the official styles and locales repositories packaged for use with the CSL RubyGem.
All styles and locales are copyright of their respective authors and released under the Creative Commons Attribution-ShareAlike license.
Update
For updating styles & locales run the following command:
git submodule update --remote