Ekman, P., & Scherer, K. Questions about emotion: An introduction / Paul Ekman. Klaus Scherer. Approaches to emotion.(c 1984).
Lua i Stíl Chicago (17ú heag.)Ekman, Paul, agus Klaus Scherer. "Questions About Emotion: An Introduction / Paul Ekman. Klaus Scherer." Approaches to Emotion.(c 1984) .
Lua MLA (8ú heag.)Ekman, Paul, agus Klaus Scherer. "Questions About Emotion: An Introduction / Paul Ekman. Klaus Scherer." Approaches to Emotion.(c 1984), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.