APA (7th ed.) Citation

Walz, S., & Deterding, S. (2015). Issues.

Chicago Style (17th ed.) Citation

Walz, Steffen, and S. Deterding. Issues. 2015.

MLA (9th ed.) Citation

Walz, Steffen, and S. Deterding. Issues. 2015.

Warning: These citations may not always be 100% accurate.