121. Tracked Changes. Information technology. Automatic identification and data capture techniques. Code 39 bar code symbology specification. (5th June 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (58 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
122. Typewriters. Specification for keyboard arrangements Part 1, (30th June 1982) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (4 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗