000 00259nam a2200109Ia 4500
008 160710s1954 xx 000 0 und d
100 _aMATHUR,M.P. & WANCHAO
245 _aPRACTICAL PHYSICS
260 _bPREMIER PUIB.
_c1954
300 _a244
942 _2ddc
_cB
999 _c16113
_d16113