000 00314nam a2200121Ia 4500
005 20260205042135.0
008 260111s9999||||xx |||||||||||||| ||und||
100 _aMASON STEPHEN F
245 0 _aMAIN CURRENTS OF SCIENTIFIC THOUGHT
260 _aLOND.
_bROUTLEDGE AND KEGAN PAUL
_c1956
300 _a520
942 _cBK
999 _c27528
_d27528