TY - GEN AU - Morris, Marlene C AU - McMurdie, Howard F AU - Evans, Eloise H AU - Paretzkin, Boris AU - Parker, Harry S AU - Pyrros, Nikos P AU - Hubbard, Camden R C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1984-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.MONO.25-20 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1984 TI - Standard x-ray diffraction powder patterns ::section 20- data for 71 substances ER -