TY - RPRT TI - Circular of the Bureau of Standards no. 561: reference tables for thermocouples AU - Shenker, Henry AU - Corruccini, Robert J AU - Lonberger, S T PY - 1955 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS CIRC 561 DO - 10.6028/NBS.CIRC.561 ER -