000 00291nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aRobert Bruce
245 0 _aConcepts and methods of Theoretical physics
260 _bVan Nostrand
260 _c1951
365 _b69.38
942 _cBK
999 _c195413
_d195413