@misc{1172871, author = {Marlene C Morris and Howard F McMurdie and Eloise H Evans and Boris Paretzkin and Harry S Parker and Nikos P Pyrros and Camden R Hubbard}, title = {Standard x-ray diffraction powder patterns ::section 20- data for 71 substances}, year = {1984}, month = {1984-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.MONO.25-20}, language = {en}, }