-
1Foilsithe / Cruthaithe 1970Ábhair “...Earth stations (Satellite telecommunication)...”
Imeacht comhdhála LEABHAR -
2Foilsithe / Cruthaithe 1969Ábhair “...Telecommunication Congresses....”
Imeacht comhdhála LEABHAR -
3Foilsithe / Cruthaithe 1987Ábhair “...Telecommunication systems Great Britain Congresses....”
Imeacht comhdhála LEABHAR -
4Foilsithe / Cruthaithe 1983Ábhair “...Telecommunication systems Congresses....”
LEABHAR