Style de citation APA (7e éd.)
Duckworth, M., Aspinall, T., & Peel, E. (1989). Success at First Certificate: Practice Test 2. The University Press.
Style de citation Chicago (17e éd.)
Duckworth, Michael, Tricia Aspinall, et E. Peel. Success at First Certificate: Practice Test 2. Oxford: The University Press, 1989.
Style de citation MLA (9e éd.)
Duckworth, Michael, et al. Success at First Certificate: Practice Test 2. The University Press, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.