TY - RPRT TI - Federal Information Processing Standards Publication: information processing - data interchange on 130 mm (5.25 in) flexible disk cartridges using modified frequency modulation recording at 7958 ftprad, 1.9 tpmm (48 tpi), on two sides - part 3: track format B PY - 1984 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS FIPS 117 DO - 10.6028/NBS.FIPS.117 ER -