Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Douglas, Charles Primrose and Holt, K. S. (Kenneth Sunderland) and Institute for Research into Mental and Multiple Handicap","Mental retardation : prenatal diagnosis and infant assessment : proceedings of Symposia 6 and 8 held at the Middlesex Hospital Medical School on 19 June 1970 and 26 March 1971 under the auspices of the Institute for Research into Mental Retardation, London",,Butterworths for the Institute for Research into Mental Retardation,1972,,,0407268502,,https://cir.nii.ac.jp/crid/1130282272042156928