TY - GEN AU - Mueller,H.Gustav AU - Hawkins,David B. AU - Northern,Jerry L. TI - Probe microphone measurements: : hearing aid selection and assessment SN - 1879105683 PY - 1992/// CY - San Diego, California PB - : Singular Publishing Group KW - Hearing aids KW - Audiometry KW - United States (country of publication) ER -