000 00279 a2200097 4500
008 190219b xxu||||| |||| 00| 0
245 _aFresh water invertebrates of the United States /
_cPennak, R.W.
260 _aNew York
_bThe Ronald Express Co
_c1953
300 _a241p.
942 _2ddc
_cBK
999 _c8531
_d8531