000 00350nam a2200157Ia 4500
008 190201s9999 xx 000 0 und d
020 _a8122400027
082 _a621
082 _b3192 C
100 _a"Choudhury, D Roy"
245 0 _aNetwork & Systems
260 _aNew Delhi
260 _bWiley Eastern
260 _c1988
300 _a"Xi, 925"
999 _c29278
_d29278