APA (7th ed.) Citation
Penny, R. J. (2000). Variation and change in Spanish. Cambridge University Press.
Chicago Style (17th ed.) Citation
Penny, Ralph J. Variation and Change in Spanish. Cambridge, UK ; New York, NY, USA: Cambridge University Press, 2000.
MLA (9th ed.) Citation
Penny, Ralph J. Variation and Change in Spanish. Cambridge University Press, 2000.
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