TY - GEN AU - Gore,G.B. ED - National Acoustic Laboratories (Australia) TI - User and installation notes on audio frequency loop systems for use with hearing aids T2 - NAL Report SN - 0644013400 PY - 1986/// CY - Canberra PB - : AGPS KW - Hearing aids KW - Audio Equipment KW - Australia (country of publication) N1 - At head of title: National Acoustic Laboratories ER -