Because of the situation with specials, if I were designing a sortable by user database, I would set it up with primary magazine name and secondary magazine name. If it was a special you would use that name in the secondary. If it was not a special, the primary name and secondary name would be the same. This way the magazine would only be listed once, but the user could find the specials by sorting the secondary name. Phillyman's database does not support this. Your choices are list the magazine once, doing the best you can to sort out the mess or list it twice, once in the primary name list and again in the special name list. I think you are going to have to just wing it for now. It would be great if you had some kind of document that included a list of special issues and where they were buried in the primary magazine list and a list of specials that you were not sure what primary magazine they were from and a third list of primary magazines with quantity of unknown specials.