Style de citation APA (7e éd.)
Duckworth, M., O'Neill, R., & Gude, K. (1992). Success at First Certificate: Student's Book (4.impression.). The University Press.
Style de citation Chicago (17e éd.)
Duckworth, Michael, Robert O'Neill, et Kathy Gude. Success at First Certificate: Student's Book. 4.impression. Oxford: The University Press, 1992.
Style de citation MLA (9e éd.)
Duckworth, Michael, et al. Success at First Certificate: Student's Book. 4.impression. The University Press, 1992.
Attention : ces citations peuvent ne pas être correctes à 100%.