APA
Gas Processors Association G., . (1994). Tentative NGL loading practices RB-194-94. Tulsa, Oklahoma: Gas Processors Association, GPA.
Chicago
Gas Processors Association GPA, . 1994. Tentative NGL loading practices RB-194-94. Tulsa, Oklahoma: Gas Processors Association, GPA.
Harvard
Gas Processors Association G., . (1994). Tentative NGL loading practices RB-194-94. Tulsa, Oklahoma: Gas Processors Association, GPA.
MLA
Gas Processors Association GPA, . Tentative NGL loading practices RB-194-94. Tulsa, Oklahoma: Gas Processors Association, GPA. 1994.