TY - RPRT TI - Circular of the Bureau of Standards no. 371: alphabetical index and numerical list of United States government master specifications, promulgated by the federal specifications board (complete to June 30, 1928) PY - 1928 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS CIRC 371 DO - 10.6028/NBS.CIRC.371 ER -