00624cam a22002291 4500 med47002171 DLC 20260227111605.0 750902s1947 dcua 000 0 eng med47002171 (OCoLC)1590987 DLC FMU OCoLC DLC premarc RF297 .W5 617.8078 Whitehurst, Mary Wood, 1901- Train your hearing; lessons for home practice ... Washington, Volta Bureau 1947 viii, 90 p. illus. 18 cm. Deaf Rehabilitation. Hearing aids. 38525 38525