ISO promulgated the ISBN international standard in 1972, and set up the international ISBN center in the Prussian Library in West Berlin, which is the management institution for implementing the standard.
Before June 65438+1 October1in 2007, ISBN consisted of 10 digits, which were divided into four parts: group number (code of country, region and language), publisher number, book number and inspection code.
Starting from 65438+2007 1 October1,the new ISBN will be implemented. The new ISBN consists of 13 digits and is divided into five sections, that is, three EAN digits are added before the original 10 digit (European commodity number? ) Book product code "978". ISBN can be used as the retrieval field of online bibliography, thus adding a retrieval way for users.
Extended data:
?
13 bit ISBN
EAN: European commodity number. In 2004, ISBN Center decided to add a set of three digits in front of the ISBN, that is, add the prefix number "978" or "979" in front of the existing 10 ISBN and recalculate the audit number to convert it into a new 13-digit format and 65438. The plan was implemented on June 65438+ 10/day, 2007.
New 13 digit ISBN-Hong Kong Public Libraries Book Registration Section
Group 1: 978 or 979;
The second group: country, language or location code;
The third group: publishing house code;
It is distributed to various publishers by ISBN distribution centers in various countries or regions.
The fourth group: book serial code;
The publishing code is given by the publishing house.
The fifth group: check code;
Only one, from 0 to 9.
Baidu encyclopedia-international standard book number