APA

Gas Processors Association G., . (1982). Standard for mass measurement of natural gas liquids. Tulsa, Oklahoma: Gas Processors Association, GPA.

Chicago

Gas Processors Association GPA, . 1982. Standard for mass measurement of natural gas liquids. Tulsa, Oklahoma: Gas Processors Association, GPA.

Harvard

Gas Processors Association G., . (1982). Standard for mass measurement of natural gas liquids. Tulsa, Oklahoma: Gas Processors Association, GPA.

MLA

Gas Processors Association GPA, . Standard for mass measurement of natural gas liquids. Tulsa, Oklahoma: Gas Processors Association, GPA. 1982.