APA-referens (7:e uppl.)

Casson, H. N. (1910). The history of the telephone. A. C. McClurg & co.

Chicago-referens (17:e uppl.)

Casson, Herbert Newton. The History of the Telephone. Chicago: A. C. McClurg & co, 1910.

MLA-referens (9:e uppl.)

Casson, Herbert Newton. The History of the Telephone. A. C. McClurg & co, 1910.