• https://cdn.bootcdn.net/ajax/libs/immutable/2.0.5/Immutable.dev.js
• https://cdn.bootcdn.net/ajax/libs/immutable/2.0.5/Immutable.dev.min.js
• https://cdn.bootcdn.net/ajax/libs/immutable/2.0.5/Immutable.js
• https://cdn.bootcdn.net/ajax/libs/immutable/2.0.5/Immutable.min.js