Style de citation APA (7e éd.)

Hardy-Gould, J., & Styring, J. (2011). English plus: Workbook 4 (1a. ed.). Oxford University Press.

Style de citation Chicago (17e éd.)

Hardy-Gould, Janet, et James Styring. English Plus: Workbook 4. 1a. ed. Oxford: Oxford University Press, 2011.

Style de citation MLA (9e éd.)

Hardy-Gould, Janet, et James Styring. English Plus: Workbook 4. 1a. ed. Oxford University Press, 2011.