000 00383nam a2200145Ia 4500
008 150723s9999 xx 000 0 und d
020 _a4397
082 _a 621.382 STA-E
100 _a Stanley, William D; Jeffords,John M
245 _a Electronic communication principles and systems
260 _b Cengage Learning, Australia
260 _c2009
300 _a628
942 _cBK
999 _c4153
_d4153