Penny, R. J. (2000). Variation and change in Spanish. Cambridge University Press.
Citación estilo ChicagoPenny, Ralph J. Variation and Change in Spanish. Cambridge, UK ; New York, NY, USA: Cambridge University Press, 2000.
Cita MLAPenny, Ralph J. Variation and Change in Spanish. Cambridge University Press, 2000.
Warning: These citations may not always be 100% accurate.