00465pamaa2200157 4500 0000016752 20060628090000.0 0130507741 791.44 ALD PN1990.9.P76 ALD 1989 ALDRIDGE Audio/Video Production : theory and practice Henry B. Aldridge, Lucy A.Liggetl. New Jersey: Prentice-Hall, 1989. xvi, 336p.; 1989. Audio-Visual Materials Liggetl, Lucy A.