TY  - RPRT
TI  - Thermodynamic properties of isobutane mixtures from 240 to 600 K and up to 20 Mpa with supplemental tables from -40 to +600�F and up to 1000 psia 
AU  - Gallagher, J S
AU  - Levelt Sengers, J M H
AU  - Morrison, G
AU  - Sengers, J V
PY  - 1984
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 84-2971
DO  - 10.6028/NBS.IR.84-2971
ER  -