APA (7th ed.) Citation

Schäfer, I. (2013). Playing horror: Narrative and genre in Valve's Left 4 Dead Series.

Chicago Style (17th ed.) Citation

Schäfer, Iris. Playing Horror: Narrative and Genre in Valve's Left 4 Dead Series. Jyväskylä, 2013.

MLA (9th ed.) Citation

Schäfer, Iris. Playing Horror: Narrative and Genre in Valve's Left 4 Dead Series. 2013.

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