Online combined catalogue of the libraries of the Hungarian Province of the Society of Jesus is available HERE.
To search the collection of the Historical Library alone, switch the 'Localities' field above the 'Search' button from 'Minden gyűjtemény' to 'Rendtörténeti Könyvtár, Horánszky utca'.
Also find our library database integrated into the Combined Catalogue and Information Portal of the Ecclesiastical Libraries of Hungary (UNITAS).
