American Medical Association Committee on Medical Rating of Physical Impairment: Guides to the Evaluation of Permanent Impairment. J.A.M.A. 168:475, 1958.
2.
American Medical Association Committee on Medical Rating of Physical Impairment: Guide to the Evaluation of Permanent Impairment; Ear, Nose, Throat and Related Structures. J.A.M.A. 177:489–501, 1961.
3.
American Medical Association Council on Physical Medicine: Minimum Requirements for Acceptable Audiometers. J.A.M.A. 127:520–521, 1945.
4.
American Standards Association: Audiometers for General Diagnostic Purposes, Z24.5, 1951. New York: American Standards Assn., Inc., 1951.
5.
American Standards Association: Specification for Speech Audiometers, Z24.13, 1953. New York: American Standards Assn., Inc., 1953.
6.
DadsonJ. R.KingJ. H.: A Determination of the Normal Threshold of Hearing and Its Relation to the Standardization of Audiometers. J. Laryngol. and Otol. 66:366–378, 1952.
7.
DavisH.: Missouri Senate Bill No. 167 Concerning Industrial Hearing Loss: An Interpretation. A.M.A. Arch. Otolaryngol. 72:87–95, 1960. Glorig, A., and Davis, H.: Age, Noise and Hearing Loss. Annals of Otology, Rhinology and Laryngology 70:556–571, 1961.
8.
DavisH.: International Standard Reference Zero for Pure-tone Audiometry. Trans. Amer. Acad. Ophthal. Otolaryngol. 69:112–118, 1965.
9.
DavisH.: The ISO Zero Reference Level for Audiometers. Arch. Otolaryngol. 81:145–149, 1965.
10.
DavisH.: Guide for the Classification and Evaluation of Hearing Handicap in Relation to the International Audiometric Zero. Trans. Arm. Acad. Ophthal. Otolaryngol. 69:740–751, 1965.
11.
DavisH.KranzF. W.: The International Standard Reference Zero for Pure-tone Audiometers and Its Relation to the Evaluation of Impairment of Hearing. Trans. Amer. Acad. Ophthal. Otolaryngol. 68:484–498, 1964.
12.
DavisH.KranzF.: The International Audiometric Zero. Annals of Otology, Rhinology and Laryngology73:807–815, 1964.
13.
GlorigA.: A Report of Two Normal Hearing Studies. Annals of Otology, Rhinology and Laryngology67:93–112, 1958.
International Organization for Standardization: Standard Reference Zero for the Calibration of Pure-tone Audiometers. ISO Recommendation R389. Geneva, Switzerland: Internal. Organization for Standardization, 1964. (Also available through the American Standards Organization.).
16.
JergerJ. F.CarhartR.TillmanT. W.PetersenJ. L.: Some Relations Between Normal Hearing for Pure Tones and Speech. J. Speech Hearing Dis. 2:126–140, 1959.
17.
National Institute of Health: Hearing Study Series Bulletins 1–7. National Health Survey, 1935–1936, Preliminary Reports. Public Health Service, Washington, D. C., 1938.
18.
RileyE. C.SternerJ. H.FassettSuttonW. L.: Critique on the Concept of Audiometer Zero. Arch. Otolaryngol. 81:139–144, 1965.
19.
U. S. National Center for Health Statistics: Hearing Levels of Adults by Age and Sex: United States, 1960–1962. Vital and Health Statistics. Data from National Health Survey. Public Health Service Publication No. 1000 — Series 11 — No. 11 (Oct.) 1965.