APA (7th ed.) Citation

Johannsen, K. L., Tarver Chase, R., & Jenkins, R. (2015). World English 2 (Second edition.). National Geographic Learning.

Chicago Style (17th ed.) Citation

Johannsen, Kristin L., Rebecca Tarver Chase, and Rob Jenkins. World English 2. Second edition. Boston, USA: National Geographic Learning, 2015.

MLA (9th ed.) Citation

Johannsen, Kristin L., et al. World English 2. Second edition. National Geographic Learning, 2015.