Yule, G. (1985). The study of language: An introduction.
Cita Chicago (17th ed.)Yule, George. The Study of Language: An Introduction. Cambridge Cambridgeshire, 1985.
Cita MLA (9th ed.)Yule, George. The Study of Language: An Introduction. 1985.
Atenció: Aquestes cites poden no estar 100% correctes.