API MPMS 14.2-1992 Compressibility Factors of Natural Gas and Other Related Hydrocarbon Gases (Second Edition; Available through AGA (American Gas Association) only as AGA Report No. 8)
1994API MPMS 14.2-1994 Compressibility Factors of Natural Gas and Other Related Hydrocarbon Gases (Second Edition)
1992API MPMS 14.2-1992 Compressibility Factors of Natural Gas and Other Related Hydrocarbon Gases (Second Edition; Available through AGA (American Gas Association) only as AGA Report No. 8)