Purnell, T. C., Raimy, E., & Salmons, J. (2013). Wisconsin talk: Linguistic diversity in the Badger State. The University of Wisconsin Press.

Purnell, Thomas C., Eric Raimy, and Joe Salmons. Wisconsin Talk: Linguistic Diversity in the Badger State. Madison, Wisconsin ; London, England: The University of Wisconsin Press, 2013.

Purnell, Thomas C., et al. Wisconsin Talk: Linguistic Diversity in the Badger State. The University of Wisconsin Press, 2013.