1. Scope
The purpose of this International
Standard is to co-ordinate and standardize the use of identifying numbers
so that each international standard book number (ISBN) is unique to a title
or edition of a book or other monographic publication published or produced
by a specific publisher or producer. It specifies the construction of an
international standard book number and the location of the printed number
on the publication.
...
3.
Construction of an international standard book number
An international standard book
number consists of ten digits 4 made up
of the following parts
- group identifier (i.e.
national, geographical, language or other convenient group);
- publisher or producer identifier;
- title identifier;
- check digit.
When an international standard
book number is either written or printed it shall be preceded by the letters
ISBN. Each part shall be separated by a space or a hyphen as in the following
examples:
ISBN 0 571 08989 5
ISBN 90-70002-34-5
3.1. Group
identifier
The group identifier is allocated
by the International ISBN Agency. It varies in length from group to group
according to the title output of the group concerned.
3.2 Publisher
or producer identifier
The publisher or producer identifier
is allocated internally within the group, by the agency appointed for this
purpose. The publisher or producer identifier varies in length according
to the title output of the publisher or producer concerned.
3.3. Title
identifier
The length of the title identifier
is determined by the length of the group and publisher or producer identifiers
which precede it.
3.4. Check
digit
The check digit is calculated
on a modulus 11 with weights 10 to 2, using X in lieu of 10 where 10 would
occur as a check digit.
4.
Location and display of the ISBN
4.1 Books,
pamphlets and other printed material
The international standard book
number shall be printed on the verso of the title leaf (see ISO 1086) or,
if this is not possible, at the foot of the title page itself. It shall
also appear at the foot of the outside back cover if practicable, and at
the foot of the back of the jacket if the book has one; if neither of these
alternatives is possible, then the number shall be printed in some other
prominent position on the outside.
4 The digits are the arabic numerals
0-9; in the case of the check digit only, an X can sometimes occur (see
2.4) |
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