| GMD | Text |
| Language | Chi |
| Classification | 384.09 4408 2000 |
| Publisher | 香港, 洪波, 2000 |
| Edition | 第1版. |
| Subject | Telecommunication -- Popular works.Telecommunication -- Technological innovations -- Popular works.Telecommunication -- History |
| Series | 科技普及知識叢書 |
| Description | [3], 118 p. : ill. ; 20 cm. |
| ISBN | 9789626711163 |