000 00318 a2200109 4500
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100 _aHyman, L.H.
245 _aThe Invertebrates Echinodermata the Coelomate Bilateria /
_cHyman, L.H.
260 _aNew York
_bMcgrow Hill Book Co. Inc
_c1955
300 _a251p.
942 _2ddc
_cBK
999 _c8511
_d8511