00554nam a2200181Ia 4500 0 0 ddc 0 0 APHY MES MES PHY 2019-02-20 325.00 1 621.38275 GUP/T 36187 2019-12-20 00:00:00 2019-12-19 2019-02-20 BK GL16R4 34492 34492 OSt 20200916133833.0 190216s9999||||xx |||||||||||||| ||und|| 9788120324992 oclc 621.38275 GUP/T Gupta, S C 779 Textbook On Optical Fiber Communication And Its Applications / S C Gupta Phi Learning Private Ltd, 2009. New Delhi: 466p Physics BK ddc 621.38275 GUP/T 621.38275 GUP/T