National Association of Broadcasters. Research Dept. (1967). Standard definitions of broadcast research term. s.n.
Chicago-referens (17:e uppl.)National Association of Broadcasters. Research Dept. Standard Definitions of Broadcast Research Term. [New York]: s.n, 1967.
MLA-referens (9:e uppl.)National Association of Broadcasters. Research Dept. Standard Definitions of Broadcast Research Term. s.n, 1967.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.