National speech and hearing survey
Subtitle: interim report, project no. 50978
By: [by] Forrest M. Hull.
Publisher: U.S. Dept. of Health, Education, and Welfare, Bureau of Education for the Handicapped
Published: 1969
Place of publication: [Washington]
Language: eng
Number of pages: 36
Subjects: Speech disorders.; Hearing levels -- United States.; Health surveys -- United States.; United States -- Statistics, Medical.