APA
Gas Processors Association G., . (1973). A model for the precise calculation of liquefied natural gas densities. Tulsa, Oklahoma: Gas Processors Association, GPA.
Chicago
Gas Processors Association GPA, . 1973. A model for the precise calculation of liquefied natural gas densities. Tulsa, Oklahoma: Gas Processors Association, GPA.
Harvard
Gas Processors Association G., . (1973). A model for the precise calculation of liquefied natural gas densities. Tulsa, Oklahoma: Gas Processors Association, GPA.
MLA
Gas Processors Association GPA, . A model for the precise calculation of liquefied natural gas densities. Tulsa, Oklahoma: Gas Processors Association, GPA. 1973.