@misc{1173551, author = {Genevieve Becker}, title = {Letter Circular 393::procedure for the measurement of the reflectance of manila rope fiber for light of wave length 500 millimicrons}, year = {1933}, month = {1933-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.LCIRC.393}, language = {en}, }