000 00345nam a2200145 4500
020 _a0198573472
050 0 0 _aMED QM611
_b.B84
100 1 _aBulmer, M. G.
245 1 4 _aThe biology of twinning in man
260 _aOxford,
_bClarendon
_c1970.
300 _aix, 205 p.
_billus.
650 0 _aTwins.
650 0 _aEmbryology, Human.
942 _cBK
999 _c12323
_d12323