000 00285nam a2200121Ia 4500
100 _aBryan, Elizabeth M
020 _a0-7020-0977-6
942 _cBK
245 _aThe nature and nurture of twins
260 _aBailliere Tindall, London
_c1983
082 _a618.25 Bry
300 _aix,214
999 _c14138
_d14138