Não informado. (1978). Laser Focus with Liberoptic Communications. Advanced Technology Publications.
Chicago-referens (17:e uppl.)Não informado. Laser Focus with Liberoptic Communications. Newton, Mass: Advanced Technology Publications, 1978.
MLA-referens (8:e uppl.)Não informado. Laser Focus with Liberoptic Communications. Advanced Technology Publications, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.