APA (7th ed.) Citation

World Trade Organization, World Trade Organization, & World Trade Organization. Information and Media Relations Division. (2012). Understanding the WTO (5th ed.). World Trade Organization.

Chicago Style (17th ed.) Citation

World Trade Organization, World Trade Organization, and World Trade Organization. Information and Media Relations Division. Understanding the WTO. 5th ed. Geneva: World Trade Organization, 2012.

MLA (9th ed.) Citation

World Trade Organization, et al. Understanding the WTO. 5th ed. World Trade Organization, 2012.