| LC control no. | sh 85042347 |
|---|---|
| LC classification | HE7551 Telecommunication TK5105.73 TK5105.743 Computer networks |
| Topical heading | Electronic mail systems |
| Variant(s) | E-mail systems Electronic message systems Email systems |
| See also | Data transmission systems Telematics Voice mail systems |
| Found in | Electronic message systems, c1986. |
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