Sacco, D., Hugenberg, K., & Kiel, E. (2014). Facial attractiveness and helping behavior beliefs: Both attractive and unattractive targets are believed to be unhelpful relative to moderately attractive targets. Social psychology, 45(2), 74-85.
Cita Chicago Style (17a ed.)Sacco, Donald, Kurt Hugenberg, y Elizabeth Kiel. "Facial Attractiveness and Helping Behavior Beliefs: Both Attractive and Unattractive Targets Are Believed to Be Unhelpful Relative to Moderately Attractive Targets." Social Psychology 45, no. 2 (2014): 74-85.
Cita MLA (9a ed.)Sacco, Donald, et al. "Facial Attractiveness and Helping Behavior Beliefs: Both Attractive and Unattractive Targets Are Believed to Be Unhelpful Relative to Moderately Attractive Targets." Social Psychology, vol. 45, no. 2, 2014, pp. 74-85.