APA (7th ed.) Citation

Schreier, D., Trudgill, P., Schneider, E. W., & Williams, J. P. (2010). The Lesser-Known Varieties of English: An Introduction.

Chicago Style (17th ed.) Citation

Schreier, Daniel, Peter Trudgill, Edgar W. Schneider, and Jeffrey P. Williams. The Lesser-Known Varieties of English: An Introduction. 2010.

MLA (9th ed.) Citation

Schreier, Daniel, et al. The Lesser-Known Varieties of English: An Introduction. 2010.