APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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