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1
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2Published 1983Subjects “...Telecommunication Periodicals....”
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3Published 1975Subjects “...Telecommunication Handbooks, manuals, etc....”
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4
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5
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6
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7
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8Published 1998Subjects “...Internetworking (Telecommunication) Periodicals....”
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9
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10Published 1985SubjectsSerial
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11