User:Rich Farmbrough/ISBN

This is called thusly,

a. Suppose we have a 10 digit ISBN 0-593-01518-5

{{auto isbn|0|5|9|3|0|1|5|1|8|0-593-01518}}

b. Suppose we have a 13 digit ISBN 978-0-593-01518-4

{{auto isbn|0|5|9|3|0|1|5|1|8|0-593-01518}}

Up to 1 January 2007 this will display

ISBN 0-593-01518-5

Afterwards as

ISBN 978-0-593-01518-4

Clearly this would be tedious to do by hand so all templates are expected to be set up by WP:bot.