Publisher | Digits |

Addison-Wesley | 0-201 |

Amer. Math. Soc. | 0-821 |

Birkhäuser Basel | 3-7643 |

Birkhäuser Boston | 0-8176 |

Cambridge University Press | 0-521 |

CRC Press | 0-8493 |

Dover | 0-486 |

McGraw-Hill | 0-070 |

Oxford University Press | 0-198 |

Springer-Verlag Berlin | 3-540 |

Springer-Verlag New York | 0-387 |

Tarquin Publications | 0-906212 |

Wiley | 0-471 |

The International Standard Book Number (ISBN) is a 10-digit Code which is used to uniquely identify a book. The digits
are arranged in four groups. The first group is a single digit which codes country or language in which a publisher is
incorporated: 0 for English, 2 for French, 3 for German, etc. The next group of digits specifies the publisher, and may range
in length from two to seven digits, with fewer digits used for larger publishers. The third group of digits specifies an
individual book, and may be from one to six digits in length. The last digit is a check digit which may be in the
range 0-9 or X (where X is the Roman Numeral for 10). The check digit is computed from the equation

For example, the number for this book is 0-8493-9640-9, and

**References**

Hill, R. *First Course in Coding Theory.* Oxford, England: Oxford University Press, 1986.

© 1996-9

1999-05-26