000 00272nam a2200121Ia 4500
008 160710s1972 xx 000 0 und d
082 _a500 BRO
100 _aBROWN
245 _aREALM OF SCIENCE VOL. XXI
260 _bTOLEHSTONE
_c1972
300 _a190
942 _2ddc
_cB
999 _c46154
_d46154