000 00231nam a2200097Ia 4500
008 170501s9999 xx 000 0 und d
100 _a"Tri, T. Ha"
245 _aDigital Saqtelite Communication
250 _a-
260 _bTMH
_aNew Delhi
_c2009
300 _a641
999 _c21429
_d21429