00535nam a2200181Ia 4500 0 0 ddc 0 0 APHY MES MES PHY 2019-02-20 225.00 5 7 621.380414 SAR/L 32504 2023-07-25 12:30:19 2023-06-27 2019-02-20 BK GL15R1 34139 34139 OSt 20200917111458.0 190216s9999||||xx |||||||||||||| ||und|| 9788189866587 oclc 621.380414 SAR/L Sarah, P 4665 Lasers And Optical Fibre Communications / P Sarah I.K.International Publishing, New Delhi: 2008. 278p Physics BK ddc 621.380414 SAR/L 621.380414 SAR/L