You can download the most up-to-date paper form of the catalogue here. You'll need the free Adobe Acrobat Reader to read it.
(You can download Adobe's Acrobat PDF reader here.)
Please press a button from the panel on the left to generate a subset of the catalogue.
Or you can use the 'shopping basket' button to show the contents of your basket.
Or type a search term on the right for something more specific. Valid search terms can be things like SATB or a title of a piece.
However, only exact matches will be shown, so try to keep your input short. (The search is not case sensitive.)
If you are entering an ISMN, enter it with no spaces or hyphens, and without prefixing "ISMN", eg M708047025.
The results will open in the top panel, so that you can keep them handy while following the links to the pieces found.