000			00412nam a22001217a 4500
008			230428b |||||||| |||| 00| 0 eng d
040			_aNational Science Library _cNational Science Library
080			_a538.56:535.215.2 _bK3
245			_aProceedings of the symposium on optical masers New York, 16, 17, 18, 19, 1963
260			_aNew York: _bPolytechnic Press, _c1963
300			_axxv, 652p.
942			_2udc _cPR
999			_c24687 _d24687