APA (7th ed.) Citation

Horstmann, G., Lipp, O., & Becker, S. (2012). Of toothy grins and angry snarls-open mouth displays contribute to efficiency gains in search for emotional faces.

Chicago Style (17th ed.) Citation

Horstmann, G., Ottmar Lipp, and S. Becker. Of Toothy Grins and Angry Snarls-open Mouth Displays Contribute to Efficiency Gains in Search for Emotional Faces. 2012.

MLA (9th ed.) Citation

Horstmann, G., et al. Of Toothy Grins and Angry Snarls-open Mouth Displays Contribute to Efficiency Gains in Search for Emotional Faces. 2012.