000 00384nam a2200157Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a621.329
_bP917
100 _aPratt W K
245 _aLaser communication systems
260 _aLondon
_bJohn Wiley
_c1969
300 _axiv,271p.
650 _aCommunication systems
942 _cBK
999 _c62999
_d62999