TY - RPRT TI - National Measurement Laboratory Office of Measurements for Nuclear Technology : annual Report 1981 AU - Hoffman, John D AU - Yolken, H Thomas AU - Reed, W P PY - 1982 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 81-2441 DO - 10.6028/NBS.IR.81-2441 ER -