Cite
HARVARD Citation
Institution,, B. (1990) Information processing systems. Data interchange on 90 mm (3, 5 in) flexible disk cartridges using modified frequency modulationrecording at 15916 ftprad, on 80 tracks on each side.. [Online]. London : British Standards Institution. Available from: http://access.bl.uk/ark:/81055/vdc_100104018000.0x000001