@misc{1189001, author = {T C Rains and C D Olson and R A Velapoldi and S A Wicks and O Menis and J K Taylor}, title = {Preparation of reference materials for stationary source emission analysis ::beryllium}, year = {1974}, month = {1974-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.74-439}, language = {en}, }