The biology of mental defect
By: by L.S. Penrose completely revised with the assistance of J.M. Berg and Helen Lang-Brown ; with a preface by J.B.S. Haldane.
Contributors: Berg, J. M.; Lang-Brown, Helen.
Edition: 3rd rev. ed.
Publisher: Sidgwick and Jackson
Published: 1963
Place of publication: London
Language: eng