APA (7th ed.) Citation

Butke , P., & Porter, R. (1987). The Social History of language. Univ. pr..

Chicago Style (17th ed.) Citation

Butke , Peter, and Roy Porter. The Social History of Language. Cambridge: Univ. pr., 1987.

MLA (9th ed.) Citation

Butke , Peter, and Roy Porter. The Social History of Language. Univ. pr., 1987.