Cite
APA Citation
Institution,, B. S. (1988). Guide to construction and use of 130 mm (5.25 in) flexible disk cartridges for data interchange, using modified frequency modulation recording at 13 262 ftprad, on 80 tracks each side.. London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100104438595.0x000001