@misc{1162141, author = {Francis C Bell and Harold F Wollin}, title = {Report of the 57th National Conference on Weights and Measures 1972:}, year = {1973}, month = {1973-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.SP.379}, language = {en}, }