Personality structure and measurement / Hans J. Eysenck, Sybil B. G. Eysenck ; with the help of A. Hendrickson [and others] Eysenck, H. J. Eysenck, Sybil B. G. jt. aut. Personality tests. 137 EYP Includes bibliographical references. London : Routledge & K. Paul, 1969. 1969. 1969 Text xiii, 365 p. : eng