Duchenne de Boulogne, G., & Cuthbertson, R. A. (2003). The mechanism of human facial expression: By G.-B. Duchenne de Boulogne. Ed. and transl. by R. Andrew Cuthbertson. Cambridge Univ. Press.
Lua i Stíl Chicago (17ú heag.)Duchenne de Boulogne, Guillaume-Benjamin, agus R. Andrew Cuthbertson. The Mechanism of Human Facial Expression: By G.-B. Duchenne De Boulogne. Ed. and Transl. by R. Andrew Cuthbertson. Cambridge: Cambridge Univ. Press, 2003.
Lua MLA (8ú heag.)Duchenne de Boulogne, Guillaume-Benjamin, agus R. Andrew Cuthbertson. The Mechanism of Human Facial Expression: By G.-B. Duchenne De Boulogne. Ed. and Transl. by R. Andrew Cuthbertson. Cambridge Univ. Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.