APA (7th ed.) Citation

Janson, T. (2002). Speak : a short history of languages / Tore Janson: A short history of languages. Oxford University Press.

Chicago Style (17th ed.) Citation

Janson, Tore. Speak : A Short History of Languages / Tore Janson: A Short History of Languages. Oxford ; New York: Oxford University Press, 2002.

MLA (9th ed.) Citation

Janson, Tore. Speak : A Short History of Languages / Tore Janson: A Short History of Languages. Oxford University Press, 2002.

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