National Communication Systems. Office of Technology and Standards. (1991). Telecommunications: Analog to digital conversion of radio voice by 4800 bit/second code excited inear prediction (CELP). General Services Administratio. Office of information Resources Management.
Cita Chicago Style (17a ed.)National Communication Systems. Office of Technology and Standards. Telecommunications: Analog to Digital Conversion of Radio Voice by 4800 Bit/second Code Excited Inear Prediction (CELP). General Services Administratio. Office of information Resources Management, 1991.
Cita MLA (9a ed.)National Communication Systems. Office of Technology and Standards. Telecommunications: Analog to Digital Conversion of Radio Voice by 4800 Bit/second Code Excited Inear Prediction (CELP). General Services Administratio. Office of information Resources Management, 1991.