APA (7th ed.) Citation

Freeborn, D., French, P., & Langford, D. (1986). Varieties of English: An introduction to the study of language (1. publ.). Macmillan.

Chicago Style (17th ed.) Citation

Freeborn, Dennis, Peter French, and David Langford. Varieties of English: An Introduction to the Study of Language. 1. publ. Basingstoke u.a: Macmillan, 1986.

MLA (9th ed.) Citation

Freeborn, Dennis, et al. Varieties of English: An Introduction to the Study of Language. 1. publ. Macmillan, 1986.