Não informado. (1978). Laser Focus with Liberoptic Communications. Advanced Technology Publications.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Laser Focus with Liberoptic Communications. Newton, Mass: Advanced Technology Publications, 1978.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Laser Focus with Liberoptic Communications. Advanced Technology Publications, 1978.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.