Cita APA (7a ed.)
Harrison, R., Soars, L., & Soars, J. (2007). New Headway Academic Skills: Reading, writing, and study skills, Level 1: teacher's guide (1 st pub.). Oxford University Press.
Cita Chicago Style (17a ed.)
Harrison, Richard, Liz Soars, y John Soars. New Headway Academic Skills: Reading, Writing, and Study Skills, Level 1: Teacher's Guide. 1 st pub. Oxford: Oxford University Press, 2007.
Cita MLA (9a ed.)
Harrison, Richard, et al. New Headway Academic Skills: Reading, Writing, and Study Skills, Level 1: Teacher's Guide. 1 st pub. Oxford University Press, 2007.
Precaución: Estas citas no son 100% exactas.