APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, Wright, D., & Digby, A. (1996). From idiocy to mental deficiency: Historical perspectives on people with learning disabilities. Routledge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, David Wright, और Anne Digby. From Idiocy to Mental Deficiency: Historical Perspectives on People with Learning Disabilities. London ; New York: Routledge, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, et al. From Idiocy to Mental Deficiency: Historical Perspectives on People with Learning Disabilities. Routledge, 1996.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.