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999 _c29961
_d29961
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020 _a198518471
041 _aEN
082 _a535
_bWEL
_223
100 _aWELFORD, W.T.
_eaut
245 _aOptics
_c/[by] W.T.Welford
250 _a2nd ed.
260 _aOxford
_bOxford University press
_c1984
300 _avii, 150 p.-
440 _aOxford physics series
500 _aIncludes appendixes and index.
650 _aOptics
942 _cS