TY  - RPRT
TI  - Federal Information Processing Standards Publication: code extension techniques for use with the 7-bit coded character set of American national standard code for information interchange 
PY  - 1974
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS FIPS 1-2-1974
DO  - 10.6028/NBS.FIPS.1-2-1974
ER  -