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- ISBN.BAS
- --------
- This routine validates International Standard Book Numbers
- (ISBN). Useful for verifying data input in book inventories
- and similar applications.
-
- Written in GW-BASIC for ease of porting to QuickBASIC,
- PowerBASIC, what-have-you. There are no absolute line
- references so you can just remove the line numbers and use
- the rest of the routine as is.
-
- Frank Cox
- FidoNet 1:140/53
- September 1, 1991
-