Cita APA (7th ed.)
Lyons, J. (1971). Introduction to Theoretical Linguistics. Cambridge University Press.
Cita Chicago (17th ed.)
Lyons, John. Introduction to Theoretical Linguistics. Inglaterra: Cambridge University Press, 1971.
Cita MLA (9th ed.)
Lyons, John. Introduction to Theoretical Linguistics. Cambridge University Press, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.