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)

Leslie J. Newville

《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)》，Leslie J. Newville。这是一部关于历史、文学、经典的公版作品，适合在安静的片刻里慢慢读下去。