Sayer, M., Dellar, H., & Walkley, A. (2016). Outcomes: Pre-Intermediate, Teacher's Book (segunda edición.). National Geographic Learning; Cengage Learning.
Style de citation Chicago (17e éd.)Sayer, Mike, Hugh Dellar, et Andrew Walkley. Outcomes: Pre-Intermediate, Teacher's Book. segunda edición. Hampshire: National Geographic Learning; Cengage Learning, 2016.
Style de citation MLA (9e éd.)Sayer, Mike, et al. Outcomes: Pre-Intermediate, Teacher's Book. segunda edición. National Geographic Learning; Cengage Learning, 2016.
Attention : ces citations peuvent ne pas être correctes à 100%.