Hull, Raymond H. Hearing impairment among aging persons Raymond H. Hull ; with information on hearing aids prepared by Robert M. Traynor. - Lincoln, Neb. Cliffs Notes c1977. - 83 p. ill. 23 cm. - Cliffs speech and hearing series . Bibliography: p. 77-80. ISBN: 0822018268 2.75 LCCN: 77070100 Subjects--Topical Terms: Aged, Deaf.Hearing aids.Presbycusis. LC Class. No.: RF291.5.A35 / H84 Dewey Class. No.: 618.9/778/9