00389nam a2200109Ia 4500008004100000082001500041100002000056245005100076260003900127630001800166650009500184211109s9999||||xx |||||||||||||| ||und||  a535bEDS-L  aEdset [edwin],  0aLight For Students, With An Apprendix By N M B  bNATIONAL BOOKSTALLaKottayamc1950  xGeneral Stack  aNatural sciences & mathematicsvPhysicsLight & infrared & ultraviolet phenomenaxGeneralia