000 00273nam a2200109 a 4500
082 _a535.32
_bJAY
100 _aJaysinghe,E.M.
245 _aPhysics: Geometrical Optics
260 _aNawala:
_bOpen University of Sri Lanka,
_c1984.
300 _a464pp-731 pages.
942 _cREF
999 _c36221
_d36221