00886nam a2200277 i 450099100084604970753620020507102230.0960317s1977 uk ||| | eng b10137749-39ule_instLE00637846ExLDip.to Fisicaita52.9.5453.2.61523QB790Cook, A.H.461309Celestial masers /A.H. CookCambridge :Cambridge University Press,1977viii, 135 p. :ill. ;24 cm.Astronomical masers.b1013774921-09-0627-06-02991000846049707536LE006 52.9.54 COO12006000025911le006-E0.00-l- 00000.i1016293827-06-02Celestial masers185559UNISALENTOle00601-01-96ma -enguk 01