Leventhal, H. A perceptual motor theory of emotion: Howard Leventhal. Approaches to emotion.(c 1984).
Lua i Stíl Chicago (17ú heag.)Leventhal, Howard. "A Perceptual Motor Theory of Emotion: Howard Leventhal." Approaches to Emotion.(c 1984) .
Lua MLA (8ú heag.)Leventhal, Howard. "A Perceptual Motor Theory of Emotion: Howard Leventhal." Approaches to Emotion.(c 1984), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.