000 00268nam a2200121Ia 4500
020 _a080132650
100 _aHelstrom Carl W
245 _aStatistical theory of signal detection
250 _a2
260 _c1968
_bPERGAMON
_aLondon
300 _axiii+469
942 _cBK
999 _c4452
_d4452