000 00289nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aOlin E.Nelson
245 0 _aComparative Embryology of the vertebrates
260 _bmcgraw hill
260 _c1953
365 _b93.75
942 _cBK
999 _c195348
_d195348