TY - RPRT TI - Standard x-ray diffraction powder patterns AU - Swanson, Howard E AU - Morris, Marlene C AU - Evans, Eloise H PY - 1966 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS MONO 25-4 DO - 10.6028/NBS.MONO.25-4 ER -