1. Audiology: the fundamentals.;Bess,1990
2. An improved method for classifying audiograms.;Carhart;Laryngoscope,1945
3. A method for classifying audiograms.;Guild;Laryngoscope,1932
4. Audiometric interpretation: a manual of basic audiometry (2nd ed.).;Kaplan,1993
5. Hearing disorders (3rd ed.).;Keith,1996