CONVERTING ISBN TO BOOKLAND
The "Bookland" code is an EAN-13 barcode with a number system of 978.
The rest of the barcode is formulated by removing the last digit from the book's
ISBN number (which is the ISBN check digit), appending the resulting code to the
number system, and adding the appropriate EAN13 check digit.
For example, if the ISBN of a book is "968-26-1240-3", we would drop
the final ISBN check digit (3) as well as the embedded hyphens to obtain the
value "968261240". We'd append that to the number system 978 to
arrive at the number "978968261240".
Finally, we'd compute the EAN-13 checksum
digit (which turns out to be 4). The complete Bookland code, therefore,
would be "9789682612404".
ENCODING
Since a Bookland barcode is really an EAN-13 barcode, once the Bookland code has
been calculated as described above, it is simply encoded using the standard
EAN-13 Encoding Method.
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