Cita APA

House, R., Gude, K., & Duckworth, M. (2002). Proficiency masterclass: Teacher's book. Oxford: Oxford University Press.

Citación estilo Chicago

House, Roger, Kathy Gude, and Michael Duckworth. Proficiency Masterclass: Teacher's Book. Oxford: Oxford University Press, 2002.

Cita MLA

House, Roger, Kathy Gude, and Michael Duckworth. Proficiency Masterclass: Teacher's Book. Oxford: Oxford University Press, 2002.