Description
Item Description:"November 1975."
"Estimates of the number of hearing-impaired persons by degree of hearing loss and age of onset distributed by age, sex, place of residence and geographic region, size of family, limitation of activity, telephone in household, family income, years of completed education, color, Iiving arrangements, and usual activity. Based on data collected in househoId interviews during 1971."
Title from title-screen (viewed August 9, 2011).
Physical Description:1 online resource (iv, 43 pages) : illustrations.
Bibliography:Includes bibliographical references (page 17).