[bksvol-discuss] ISBN Question

  • From: "Evan Reese" <mentat1@xxxxxxxxxxxxxx>
  • To: <bksvol-discuss@xxxxxxxxxxxxx>
  • Date: Wed, 30 Aug 2006 18:35:41 -0700

I have a book with an ISBN with an X at the end of it, such as:
ISBN: 0-7564-0326-X

I have encountered this before, but not often, and was wondering if anyone here 
knows what the X signifies.


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