Citazione Stile APA (7a Edizione)

Sayer, M., Dellar, H., & Walkley, A. (2017). Advanced Outcomes: Teacher's Book. National Geographic Learning; Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Sayer, Mike, Hugh Dellar, e Andrew Walkley. Advanced Outcomes: Teacher's Book. United Kingdom: National Geographic Learning; Cengage Learning, 2017.

Citatione MLA (9a ed.)

Sayer, Mike, et al. Advanced Outcomes: Teacher's Book. National Geographic Learning; Cengage Learning, 2017.