Citação norma APA

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

Citação norma Chicago

Dellar, Hugh, and Andrew Walkley. Outcomes: Pre-Intermediate Student's Book. United Kingdom: National Geographic Learning; Cengage Learning, 2016.

Citação norma MLA

Dellar, Hugh, and Andrew Walkley. Outcomes: Pre-Intermediate Student's Book. National Geographic Learning; Cengage Learning, 2016.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.