TY  - RPRT
TI  - Speed of sound data and related models for mixtures of natural gas constituents 
AU  - Younglove, B A
AU  - Frederick, N V
AU  - McCarty, R D
PY  - 1993
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST MONO 178
DO  - 10.6028/NIST.MONO.178
ER  -