ISO 1073-2:1976/Cor 1:1979 Optical recognition of alphanumeric character sets Part 2: Character set OCR-B Shape and size of printed images Technical Corrigendum 1
1970ISO 1073-2:1976/Cor 1:1979 Optical recognition of alphanumeric character sets Part 2: Character set OCR-B Shape and size of printed images Technical Corrigendum 1
1976ISO 1073-2:1976/Amd 1:1978 Alphanumeric character sets for optical recognition; Part 2: Character set OCR-B; Shapes and dimensions of the printed image
1976ISO 1073-2:1976 Alphanumeric character sets for optical recognition; Part 2: Character set OCR-B; Shapes and dimensions of the printed image