000 00292nam a2200133Ia 4500
008 160316s1971 xxu||||| |||| 00| 0 eng d
020 _a
100 _aN.J. Berril
245 _aDevelopmental Biology
250 _a1st
260 _aNEW YORK
_bMCGRAW HILL
_c1971
300 _a516
700 _a
_a
999 _c2788
_d2788