TY  - RPRT
TI  - Examination of vapor-measuring devices for liquefied petroleum gas: a manual for weights and measures officials 
AU  - Hasko, Stephen
PY  - 1975
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS HB 117
DO  - 10.6028/NBS.HB.117
ER  -