@misc{1173461, author = {FB Silsbee}, title = {Letter Circular 901::the fundamental basis for the standardization of electrical instruments and meters}, year = {1948}, month = {1948-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.LCIRC.901}, language = {en}, }