000 00276nam a2200109Ia 4500
008 160710s1964 xx 000 0 und d
100 _aBROTHERTON,M.
245 _aMASERS AND LASERS HOE THEY WORK WHAT THEY DO
260 _bMCGRAW HILL
_c1964
300 _a207
942 _2ddc
_cB
999 _c28874
_d28874