Hutchinson, T., & Waters, A. (1987). English for specific purposes: A learning-centred approach. Cambridge University Press.
Cita Chicago (17th ed.)Hutchinson, Tom, i Alan Waters. English for Specific Purposes: A Learning-centred Approach. Cambridge [Cambridgeshire]: Cambridge University Press, 1987.
Cita MLA (8th ed.)Hutchinson, Tom, i Alan Waters. English for Specific Purposes: A Learning-centred Approach. Cambridge University Press, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.