APA (7th ed.) Citation

CHACÓN BELTRÁN, R. A. (2013). An introduction to sociolinguistics. UNED.

Chicago Style (17th ed.) Citation

CHACÓN BELTRÁN, Rubén Autor. An Introduction to Sociolinguistics. ES: UNED, 2013.

MLA (9th ed.) Citation

CHACÓN BELTRÁN, Rubén Autor. An Introduction to Sociolinguistics. UNED, 2013.

Warning: These citations may not always be 100% accurate.