Electronic communications
| Main Author: | |
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
Reston, Va.
Reston Pub. Co.
1981
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| Edition: | 2d. ed. |
| Subjects: |
| Item Description: | Includes index |
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| Physical Description: | xii, 628 p. ill. 25 cm |
| ISBN: | 0835916316 |