APA (7th ed.) Citation

Suhr, C., & Otto, T. (2011). Unity through culture. Documentary Educational Resources.

Chicago Style (17th ed.) Citation

Suhr, Christian, and Ton Otto. Unity Through Culture. Watertown, Mass: Documentary Educational Resources, 2011.

MLA (9th ed.) Citation

Suhr, Christian, and Ton Otto. Unity Through Culture. Documentary Educational Resources, 2011.