APA
National Audio-Visual Association, International Communications Industries Association, . (1974). The Audio-visual equipment directory. Fairfax, Va: National Audio-Visual Association.
Chicago
National Audio-Visual Association, International Communications Industries Association, . 1974. The Audio-visual equipment directory. Fairfax, Va: National Audio-Visual Association.
Harvard
National Audio-Visual Association, International Communications Industries Association, . (1974). The Audio-visual equipment directory. Fairfax, Va: National Audio-Visual Association.
MLA
National Audio-Visual Association, International Communications Industries Association, . The Audio-visual equipment directory. Fairfax, Va: National Audio-Visual Association. 1974.