APA (7th ed.) Citation

Milroy, J., & Milroy, L. (1999). Authority in language: Investigating standard English (3rd ed.). Routledge.

Chicago Style (17th ed.) Citation

Milroy, James, and Lesley Milroy. Authority in Language: Investigating Standard English. 3rd ed. London: Routledge, 1999.

MLA (9th ed.) Citation

Milroy, James, and Lesley Milroy. Authority in Language: Investigating Standard English. 3rd ed. Routledge, 1999.