Стиль цитування APA (7-ме видання)

Dellar, H., & Walkley, A. (2016). Outcomes: Intermediate Student's Book (second edition.). National Geographic Learning; Cengage Learning.

Чикаго стиль цитування (17-те видання)

Dellar, Hugh, та Andrew Walkley. Outcomes: Intermediate Student's Book. second edition. United Kingdom: National Geographic Learning; Cengage Learning, 2016.

Стиль цитування MLA (9-ме видання)

Dellar, Hugh, та Andrew Walkley. Outcomes: Intermediate Student's Book. second edition. National Geographic Learning; Cengage Learning, 2016.