Development of the Phonograph at Alexander Graham Bell's Volta Laboratory: Contributions from the Museum of History and Technology, United States National Museum Bulletin 218, Paper 5, (pages 69-79) | Digital Library | PAMCET

Development of the Phonograph at Alexander Graham Bell's Volta Laboratory: Contributions from the Museum of History and Technology, United States National Museum Bulletin 218, Paper 5, (pages 69-79) | Digital Library | PAMCET | PAMCET