TY - GEN AU - Gray, K M AU - Ellis, J R C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1973-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.73-235 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1973 TI - Field service test model ::computer-controlled U system. Operations manual and software operating system appendices for the automated system. volume II. ER -