000 00287nam a2200109 4500
245 _aEmbryos and ancestors
_cby Gavin de Beer
100 _aBeer, Gavin de
250 _a3rd ed.
260 _bLondon (Oxford)
_cAt the Clarendon Press
300 _axii, 197p.; 22 cm.-
082 _a591.33
_b BEE
999 _c28378
_d28378