Catford, J. C. (1988). A practical introduction to phonetics. Clarendon Press.
Cita Chicago (17th ed.)Catford, John Cunnison. A Practical Introduction to Phonetics. Oxford: Clarendon Press, 1988.
Cita MLA (9th ed.)Catford, John Cunnison. A Practical Introduction to Phonetics. Clarendon Press, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.