Bills, G. D., & Vigil, N. A. (2008). The Spanish Language of New Mexico and Southern Colorado: A Linguistic Atlas. University of New Mexico.
Cita Chicago Style (17a ed.)Bills, Garland D., y Neddy A. Vigil. The Spanish Language of New Mexico and Southern Colorado: A Linguistic Atlas. Albuquerque: University of New Mexico, 2008.
Cita MLA (8a ed.)Bills, Garland D., y Neddy A. Vigil. The Spanish Language of New Mexico and Southern Colorado: A Linguistic Atlas. University of New Mexico, 2008.
Precaución: Estas citas no son 100% exactas.