A catalogue is a list of works. It can be distinguished by composer or era. Catalogues can be helpful when you want to find out:
Sometimes, catalogues will also tell you the location of an original manuscript. For a current location, online catalogues are most reliable; older print versions may be outdated.
Historical sets, collected editions, and monuments of music
by
Heyer, Anna Harriett
Collected editions, historical series & sets, & monuments of music: a bibliography
by
Hill, George, and Norris Stephens
Popular music, 1920-1979: a revised cumulation