Sobieszek, R. A. (1999). Gymnastics of the Soul: The clinical aesthetics of Duchenne de Boulogne. Ghost in the Shell : Photography and the Human Soul ; 1850-2000 ; Essays on Camera Portraiture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSobieszek, Robert A. "Gymnastics of the Soul: The Clinical Aesthetics of Duchenne De Boulogne." Ghost in the Shell : Photography and the Human Soul ; 1850-2000 ; Essays on Camera Portraiture 1999.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSobieszek, Robert A. "Gymnastics of the Soul: The Clinical Aesthetics of Duchenne De Boulogne." Ghost in the Shell : Photography and the Human Soul ; 1850-2000 ; Essays on Camera Portraiture, 1999.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.