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International Telecommunication Union Library Catalogue 7 records found Search took 0.02 seconds. 
1.
Englewood Cliffs, NJ : PTR Prentice Hall, 1993.
Library Reading Room 621.39.B6210L I11 |
2.
London : International Thomson Computer Press, 1996.
Library Reading Room 621.39.B6210L L318 |
3.
[Washington, D.C.] : U.S. Dept. of Commerce, National Telecommunications and Information Administration, 1985
Library Reading Room 621.39.B6210L H554 |
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