000 00321nam a2200133Ia 4500
008 130629s9999 xx 000 0 und d
082 _a621.381336 TRO-M
100 _aTroup,Gordon
245 _aMasers And Lasers
260 _bJohn Wiley And Sons
_c1965
_aNew York
300 _a192
650 _aEconomics
942 _cBK
999 _c16178
_d16178