000 00263nam a2200109Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aGOWAR (JOHN)
245 0 _aOPTICAL COMMUNICATION SYSTEMS
250 _a2ND
260 _bPRENTICE HALL NEW DELHI
942 _2ddc
999 _c95725
_d95725