  1997 - Isdn From Concept to Application (Paperback) ISBN-13: 9780387915050 ISBN-10: 0387915052 Genre: Computers & Technology ?  1993 - Telecommunications Primer (Paperback) → Paperback ISBN-13: 9780273601579 ISBN-10: 0273601571 Genres: Business & Money, Reference ?  Integrated Services Digital Networks From Concept to Application (Paperback) ISBN-13: 9780470210253 ISBN-10: 0470210257 ? |
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