✦ LIBER ✦
A method of transmitting the telegraph alphabet applicable for radio, land lines, and submarine cables
✍ Scribed by George O. Squier
- Publisher
- Elsevier Science
- Year
- 1923
- Tongue
- English
- Weight
- 468 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.