found: The NBC symphony orchestra, 1938.
found: Toscanini-Horowitz [SR] p1983:container (NBC Symphonie Orchestra)
found: Sinfonie n. 4, 5 e 6 [SR] p 1981:container (NBC Orchestra)
found: Documenti storici [SR] 1982?:label (Orchestra NBC)
found: NBC program analysis files, programs file [MI], c1987:from 1966M to 1966N (NBC Symphony)
found: Sinfonía en re mayor [SR] 194-:label (Orquesta Sinfónica de la National Broadcasting Company)
found: Symphonie no 9 [SR] p1996:container (Orchestre Symphonique de la NBC)
found: Israel in Egypt [SR] p1974:container (The Symphony of the Air is the former NBC Symphony Orchestra which was conducted by Arturo Toscanini. It has been operating as an independent entity since June 1954)
found: Toscanini conducts [SR] 1950?:labels (NBC Symphony Orch.)
found: Gli anni della maturità in America. Volume 3 [SR] p1997:container (Orchestra sinfonica della NBC)
found: Schumann, R. Symphony no. 3 in E flat major, op. 97 [SR] p2010:label (NBC SO)
