TY - RPRT TI - Circular of the Bureau of Standards no. 539 volume 10: standard x-ray diffraction powder patterns AU - Swanson, Howard E AU - Evans, Eloise H AU - deGroot, Johan H PY - 1960 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS CIRC 539v10 DO - 10.6028/NBS.CIRC.539v10 ER -