APA način citiranja

Dellar, H., & Walkley, A. (2017). Outcomes: Elementary student's book. Singapore: Cengage Learning; National Geographic Learning.

Čikaški stil citiranja

Dellar, Hugh, i Andrew Walkley. Outcomes: Elementary Student's Book. Singapore: Cengage Learning; National Geographic Learning, 2017.

MLA način citiranja

Dellar, Hugh, i Andrew Walkley. Outcomes: Elementary Student's Book. Singapore: Cengage Learning; National Geographic Learning, 2017.