000 00303nam a2200109Ia 4500
008 211215s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aHusen, Torsten
245 0 _aPsychological Twin Research
260 _bAlmqvist & wiksell
_aStockholm
_c1959
942 _c1
999 _c65517
_d65517