Berg, J. M. (1971). Genetic counselling in relation to mental retardation: A Symposium held at the Middlesex Hospital Medical School on the 28th of March, 1969 under the auspices of the Institute of Research into Mental Retardation, London. Published for the Institute for Research into Mental Retardation by Pergamon Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Berg, J. M. Genetic Counselling in Relation to Mental Retardation: A Symposium Held at the Middlesex Hospital Medical School on the 28th of March, 1969 Under the Auspices of the Institute of Research into Mental Retardation, London. Oxford: Published for the Institute for Research into Mental Retardation by Pergamon Press, 1971.
Παραπομπή σε μορφή MLA (8th εκδ.)Berg, J. M. Genetic Counselling in Relation to Mental Retardation: A Symposium Held at the Middlesex Hospital Medical School on the 28th of March, 1969 Under the Auspices of the Institute of Research into Mental Retardation, London. Published for the Institute for Research into Mental Retardation by Pergamon Press, 1971.