000 00286 a2200121 4500
080 _a576.12
_bG 274 S
245 1 _aStruggle for existence
_cby G.F. Gause
260 _aBaltimore
_c1934
650 _aStruggle for Existence
100 1 _aGause, G.F.
_d
300 _a163 p.
901 _a7852
999 _c32675
_d32675