@misc{1191571, author = {Gordon M Kline}, title = {Circular of the Bureau of Standards no. 494::plastics research and technology at the National Bureau of Standards}, year = {1950}, month = {1950-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.CIRC.494}, language = {en}, }