Stewart, K. C., & Burgi, E. J. (1970). Loudness balance study of selected audiometer earphones: Determination of the characteristics of three configurations of TDH-39 earphones used in the first three cycles of the Health Examination Survey and the newer TDH-49 earphone, by the method of loudness balance on human subjects. U.S. Dept. of Health, Education, and Welfare, Public Health Service, Health Services and Mental Health Administration.
Chicago Style (17th ed.) CitationStewart, Kenneth C., and Ernest J. Burgi. Loudness Balance Study of Selected Audiometer Earphones: Determination of the Characteristics of Three Configurations of TDH-39 Earphones Used in the First Three Cycles of the Health Examination Survey and the Newer TDH-49 Earphone, by the Method of Loudness Balance on Human Subjects. Rockville, Maryland: U.S. Dept. of Health, Education, and Welfare, Public Health Service, Health Services and Mental Health Administration, 1970.
MLA (9th ed.) CitationStewart, Kenneth C., and Ernest J. Burgi. Loudness Balance Study of Selected Audiometer Earphones: Determination of the Characteristics of Three Configurations of TDH-39 Earphones Used in the First Three Cycles of the Health Examination Survey and the Newer TDH-49 Earphone, by the Method of Loudness Balance on Human Subjects. U.S. Dept. of Health, Education, and Welfare, Public Health Service, Health Services and Mental Health Administration, 1970.