TY - GEN AU - Helfrick,Albert D. AU - Helfrick,Albert D. TI - Modern Electronic instrumentation and measurement techniques SN - 9788131708880 PY - 1985/// CY - Englewood Cliffs, N.J. PB - : Prentice-Hall KW - Electric measurements KW - Electric meters KW - Electronic measurements KW - Electronic instruments ER -