Publisher identification code numbers are unlikely to be the same in the 978 and 979 ISBNs, likewise, there is no guarantee that language area code numbers will be the same. Moreover, the 10-digit ISBN check digit generally is not the same as the 13-digit ISBN check digit. Because the GTIN-13 is part of the Global Trade Item Number (GTIN) system (that includes the GTIN-14, the GTIN-12, and the GTIN-8), the 13-digit ISBN falls within the 14-digit data field range.
publisher identification code numbers are unlikely to be the same in the 978 and 979 isbns likewise there is no guarantee that language area code numbers will be the same moreover the 10-digit isbn check digit generally is not the same as the 13-digit isbn check digit because the gtin-13 is part of the global trade item number (gtin) system (that includes the gtin-14 the gtin-12 and the gtin-8) the 13-digit isbn falls within the 14-digit data field range