Soars, J. y. S. L. (2003). New Headway. English course.Pre-intermediate.Student's book (1a. ed.). Oxford University Press.
Cita Chicago Style (17a ed.)Soars, John y Soars Liz. New Headway. English Course.Pre-intermediate.Student's Book. 1a. ed. Oxford: Oxford University Press, 2003.
Cita MLA (8a ed.)Soars, John y Soars Liz. New Headway. English Course.Pre-intermediate.Student's Book. 1a. ed. Oxford University Press, 2003.
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