APA Citation

Gude, K., & Duckworth, M. (1994). Proficiency masterclass. Oxford: Oxford University Press.

Chicago Style Citation

Gude, Kathy., and Michael Duckworth. Proficiency Masterclass. Oxford: Oxford University Press, 1994.

MLA Citation

Gude, Kathy., and Michael Duckworth. Proficiency Masterclass. Oxford: Oxford University Press, 1994.

Warning: These citations may not always be 100% accurate.