LEADER 00000nam 2200193 a 4500 001 0797656 003 UkHlHU 007 t 008 003004 6 1983 000 eng 040 UkHlHU 050 4 TK 5105.2 G2 100 1 Gecsei, Jan. 245 14 The architecture of videotex systems. 260 Englewood Cliffs :|bPrentice-Hall,|c1983. 300 276p. 650 0 Electric telegraphy. 946 020 absent -- ISBN check required
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