Bret Pimentel has revamped his great resource page for what doubles are in what book for what musical (that makes sense right?)
A heck of a lot easier than figuring out what company owns it, then trying to find it on their webpage. And sometimes the company webpage isn’t quite up to date.
Anyhow, it’s a great resource to check if you get a call to play a musical to double check what instruments you will be needing.