steering away from Quoting from a Catholic Source (Vatacan 2 Council document) regarding published material.
obviously they are still in the business of being ashamed of it.
Back to the point: I propose this solution:
1. a column for denomination on the library
2. a filter for all searches (ie so you can filter out results by denomination).
This way you can search, and filter out the chaff from the wheat. ( or on the occasion that you want to research another denomination, you can exclusively find chaff )
handy?