Well, it's a slow evening at the Germantown (MD, USA) Public Library -- probably because it's supposed to start snowing any time now -- so here I sit Mudcatting. There are actually quite a few people in the Library, but most of them seem to be using the computers or checking out videos. Not many reference questions tonight. Suits me.

There are several threads addressing this question. Two of the longer ones are this one and this one. Both of these are older threads that got mixed up a year or so ago when the Mudcat server crashed. All the posts are there, but many are out of order, so the answers appear before the questions. Lots of Mudcat librarians posted to these threads. There are a few other library-related threads as well.

Nancy