Cover image for Hearing levels of youths 12-17 years, United States; distribution of monaural hearing levels of youths 12-17 years at frequencies of 250, 500, 1000, 2000, 3000, 4000, 6000, and 8000 hertz as determined in individual air-conduction tests, by age, sex, race, geographic region, size of place of residence, family income, and education of parent
Title:
Hearing levels of youths 12-17 years, United States; distribution of monaural hearing levels of youths 12-17 years at frequencies of 250, 500, 1000, 2000, 3000, 4000, 6000, and 8000 hertz as determined in individual air-conduction tests, by age, sex, race, geographic region, size of place of residence, family income, and education of parent
Author:
Roberts, Jean, 1918-
Personal Author:
Publication Information:
Rockville, Md. : National Center for Health Statistics; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington], 1975.
Physical Description:
iv, 84 pages : illustrations ; 26 cm.
Language:
English
Added Author:
ISBN:
9780840600240
Format :
Book