@misc{1168956, author = {W S Connor}, title = {A study of the cement testing program of the National Bureau of Standards:}, year = {1953}, month = {1953-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.RPT.2972}, language = {en}, }