Cita APA (7a ed.)
Cornish, T., & Horncastle, B. (1993). Central News 1. Activity Book. + VIDEOKAZETA 1 (4.impression.). Oxford University Press.
Cita Chicago Style (17a ed.)
Cornish, Tony, y Bill Horncastle. Central News 1. Activity Book. + VIDEOKAZETA 1. 4.impression. Oxford: Oxford University Press, 1993.
Cita MLA (9a ed.)
Cornish, Tony, y Bill Horncastle. Central News 1. Activity Book. + VIDEOKAZETA 1. 4.impression. Oxford University Press, 1993.
Precaución: Estas citas no son 100% exactas.