-
1de réir Billings, Andrew C.Ábhair “...National Broadcasting Company, inc....”
Foilsithe / Cruthaithe 2008
LEABHAR -
2de réir Klatell, David A.Ábhair “...Television broadcasting of sports United States....”
Foilsithe / Cruthaithe 1988
LEABHAR -
3