| Type |  Book |
| ชื่อเรื่อง | Issues in telecommunication and disability : COST 219 / edited by Stephen von Tetzchner |
| ISBN | 9282631281 |
| | 9789282631287 |
| พิมพลักษณ์ | Brussels, Luxembourg : Commission of the European Communities, c1991 |
| รูปเล่ม | vii, 495 p. : ill. ; 25 cm |
| หัวเรื่อง | People with disabilities --Means of communication [] |
| | Self-help devices for the disabled |
| | Telecommunications devices for the deaf |
| | Video telephone |