ISIC Rev. 3
ISIC Rev. 3 - 3 & 4 digit level Combinations
ISIC Rev. 3 - 2 digit level Combinations
ISIC Rev. 4
ISIC Rev. 4 - 3 & 4 digit level Combinations
ISIC Rev. 3 - 3 & 4 digit level Combinations
ISIC Rev. 3 - 2 digit level Combinations
ISIC Rev. 4 - 3 & 4 digit level Combinations