000 00387nam a22001577a 4500
003 Libseu
008 180801b xxu||||| |||| 00| 0 eng d
020 _a053400010x
041 _aEnglish
082 _a574
_bSPR
100 _aSpratt Nelson, T.
245 _aDevelopmental biology
260 _aCalifornia
_bWadsworth Publishing
_c1971
_g1971
300 _a553p.
942 _2ddc
_cLEB
999 _c82488
_d82488