APA (7th ed.) Citation

Liffen, J. (2013). Telegraphy and telephones.

Chicago Style (17th ed.) Citation

Liffen, John. Telegraphy and Telephones. 2013.

MLA (9th ed.) Citation

Liffen, John. Telegraphy and Telephones. 2013.

Warning: These citations may not always be 100% accurate.