TY - RPRT TI - Publications and services of the cryogenics division : National Bureau of Standards, 1953 - 1977 AU - Friz*en, D J PY - 1978 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS TN 1005 DO - 10.6028/NBS.TN.1005 ER -