000 00302 a2200121 4500
080 _a575.113
_bD 252 G
245 1 _aGene activity in early development
_cby E.H. Davidson
260 _aLondon
_bAcademic Press
_c1969
650 _aGene
100 1 _aDavidson, E.H.
_d
300 _a375 p.
901 _a105890
999 _c32501
_d32501