Casson, H. N. (1990). The history of the telephone. Champaign, Ill.: Project Gutenberg.
Chicago Style CitationCasson, Herbert Newton. The History of the Telephone. Champaign, Ill.: Project Gutenberg, 1990.
MLA CitationCasson, Herbert Newton. The History of the Telephone. Champaign, Ill.: Project Gutenberg, 1990.
Warning: These citations may not always be 100% accurate.