Frylock's Gaming & Geekery went and did the work so you don't have to. He's posted a complete document of all monsters in D&D 5E that had abilities/powers that required referencing some other book (such as spells). This complete document is located right here; grab it before WotC sends a take-down notice!!!
At WotC: Remember this when you release any future Monster Manuals. The "everything in one stat block format" of D&D 4E was actually one of the major innovations in D&D and should have been retained.