Hearing sensitivity and related medical findings among children, United States /
Roberts, Jean,1918-
Federico, John V.
Rockville, Md., : National Center for Health Statistics;  [for sale by the Supt. of Docs., U.S. Govt. Print. Off.,  Washington],
1972.
Includes bibliographical references.
Hearing disorders in children
Hearing levels
Pediatric otolaryngology