@misc{1162341, author = {Daniel V De Simone}, title = {U.S. metric study interim report - education:}, year = {1971}, month = {1971-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.SP.345-6}, language = {en}, }