EndNote is a very robust citation management system, and works best with a traditional word processing suite. Pages is designed for collaboration, and creation of eye-catching documents. Pages is great for creating charts and ePUB documents; however, Pages is not designed for academic papers. EndNote will have a different interface in Pages, than it does in Word for Mac. EndNote in Pages is Menu driven, while Word for Mac uses a floating toolbar, or adds a tab -- depending on your version.