LEADER 00000cam a2200265 a 4500 001 u2331 001 1647 003 SIRSI 005 20020821113900.0 008 911018s1986 enka f 000 0 eng d 020 0333395026 035 ocm48295273 040 EL$|cEL$ 049 UAUA 050 00 TK5105.5|bC58 1986 100 1 Cole, Robert 245 10 Computer communications. 250 2 ed. 260 London :|bMacmillan ،|c1986. 300 viii,173 p. :|bilus. ؛|c24 cm. 440 0 Macmillan computer science series 650 4 Sistemas de transmisiقon de datos 994 92|bUAAUS