000 00341nam a2200145Ia 4500
003 IN-KoSCC
082 _a537.56
_bJ15In
100 1 _aJacob,L.
245 1 _aIntrodoction to electron optics.
260 _aNew York
_bJohn Wiley & sons.
_c1951
300 _ax,150p.
_bill.diagrs.
_c17cm.
500 _aRs.12.15
653 _aphysics
942 _cBK
999 _c3260
_d3260