The biology of mental defect
By: by L. S. Penrose.  With a preface by J. B. S. Haldane.  Completely revised with the assistance of J. M. Berg and Helen Lang-Brown.
Edition: Second impression (1966) of the 2nd revised edition (1963).
Publisher: Sidgwick and Jackson
Published: 1966
Place of publication: London
Number of pages: 374
Subjects: Medical genetics; Mental retardation
Notes: Bibliography : p. 297-338.