APA (7th ed.) Citation

Filppula, M., Klemola, J., & Paulasto, H. (2008). English and Celtic in contact. Routledge.

Chicago Style (17th ed.) Citation

Filppula, Markku, Juhani Klemola, and Heli Paulasto. English and Celtic in Contact. New York: Routledge, 2008.

MLA (9th ed.) Citation

Filppula, Markku, et al. English and Celtic in Contact. Routledge, 2008.