@misc{1126466, author = {B C Son}, title = {Fire endurance tests of unprotected wood-floor constructions for single-family residences:}, 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.IR.73-263}, language = {en}, }