Take a look at worldcat.org. The FRBR algorithms for concatinating works/editions is constantly being tweaked‹a huge challenge to make it ³perfect,² given the inconsistencies in catalog records submitted by libraries. Nevertheless, a huge step forward. --Jackie -- Jackie Dooley Program Officer, OCLC Research & President, Society of American Archivists [log in to unmask] 949.492.5060 (work/home) -- Pacific Time (GMT 8) 949.295.1529 (mobile)