APA (7th ed.) Citation

Bills, G. D., & Vigil, N. A. (2008). The Spanish language of New Mexico and southern Colorado: A linguistic atlas. University of New Mexico Press.

Chicago Style (17th ed.) Citation

Bills, Garland D., and Neddy A. Vigil. The Spanish Language of New Mexico and Southern Colorado: A Linguistic Atlas. Albuquerque: University of New Mexico Press, 2008.

MLA (9th ed.) Citation

Bills, Garland D., and Neddy A. Vigil. The Spanish Language of New Mexico and Southern Colorado: A Linguistic Atlas. University of New Mexico Press, 2008.