@misc{1169161, author = {W H Clatworthy and W S Connor and D N Evans}, title = {A testing plan for cement:}, 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.2560}, language = {en}, }