RT Book T1 The silent witness: a polygraphist's casebook A1 Gugas, Chris LA English PP Englewood Cliffs, N.J. PB Prentice-Hall YR 1979 UL https://krimdok.uni-tuebingen.de/Record/1651747261 OP 254 CN HV8078 SN 0138100691 K1 Lie detectors and detection : United States K1 Criminal Investigation : United States : Case studies