000 00340nab a2200145Ia 4500
008 230101s1987 xx 000 0 eng d
100 _aPorter, Roy
245 0 _aMalthus and darwin
250 _aVol. 25 Issue 2
260 _c1987
300 _a215-216p
310 _aQuaterly
773 _tHistory of Science
_051494
942 _2ddc
_cAR
999 _c82463
_d82463