000 00412nam a2200133 4500
020 _a0041000358
084 _2Colon Classification
100 _aHanson, Norwood Russell
245 _aObservation and explanation :
_ba guide to philosophy of science /
_cby Norwood Russell Hanson
260 _aLondon :
_bGeorge Allen And Unwin Limited,
_c1972.
300 _a84p. :
650 _aPhilosophy
942 _cBK
999 _c705561
_d705561