@misc{1190736, author = {Stephen Hasko}, title = {Examination of vapor-measuring devices for liquefied petroleum gas: a manual for weights and measures officials:}, year = {1975}, month = {1975-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.HB.117}, language = {en}, }