[Web4lib] Conversion between ISBN-10 and ISBN-13

[Patricia F Anderson]

There is already an online converter:

<http://www.isbn.org/converterpub.asp>

They offer the service to convert large stacks.

"Need a large list of ISBNs converted? Enquire about obtaining your 
converted list."

To go from 13 to 10 is easy -- the isbn-10 is the last 10 digits of thte 
isbn-13. Going the other direction, I haven't figured out yet (not that 
I've tried hard).

  -- Patricia Anderson, pfa at umich.edu

On Sat, 30 Sep 2006, David Kane wrote:

> Hi,
>
> Can anyone tell me what the conversion between ISBN-10 and ISBN-13 is,
> please.  I need to write a little conversion program.  Anything in PHP,
> for example.
>
> Thanks a lot.
>
> David Kane
> Waterford Institute of Technology
> http://library.wit.ie/
> T: ++353.51302838
> M: ++353.876693212
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