Soars, J., & Soars, L. (2004). New headway English course: Elementary Student's book. Oxford University Press.
Citace podle Chicago (17th ed.)Soars, John, a Liz Soars. New Headway English Course: Elementary Student's Book. New York: Oxford University Press, 2004.
Citace podle MLA (8th ed.)Soars, John, a Liz Soars. New Headway English Course: Elementary Student's Book. Oxford University Press, 2004.
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