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040 _aMAIN
041 _aEnglish
082 _a621.366
_bLYT
100 _aLytel, Allan
245 _aIntroduction to lasers and masers
260 _aEngland
_bW.Foulsham
_c1966
300 _a128p.
650 _aEngineering
650 _aLaser Technology
942 _cBK
999 _c31958
_d31958