APA aipamena

Dellar, H., & Walkley, A. (2016). Outcomes: Upper Intermediate Class DVD-ROM. National Geographic Learning Cengage Learning.

Chicago Style aipamena

Dellar, Hugh, and Andrew Walkley. Outcomes: Upper Intermediate Class DVD-ROM. United Kingdom: National Geographic Learning Cengage Learning, 2016.

MLA aipamena

Dellar, Hugh, and Andrew Walkley. Outcomes: Upper Intermediate Class DVD-ROM. National Geographic Learning Cengage Learning, 2016.