TY - RPRT TI - Circular of the Bureau of Standards no. 207: recommended specification for limestone, quicklime, lime powder, and hydrated lime for use on the manufacture of sugar PY - 1925 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS CIRC 207 DO - 10.6028/NBS.CIRC.207 ER -