APA
Gas Processors Association G., . (2000). Obtaining liquid hydrocarbon samples for analysis by gas chromatography. Tulsa, Oklahoma: Gas Processors Association, GPA.
Chicago
Gas Processors Association GPA, . 2000. Obtaining liquid hydrocarbon samples for analysis by gas chromatography. Tulsa, Oklahoma: Gas Processors Association, GPA.
Harvard
Gas Processors Association G., . (2000). Obtaining liquid hydrocarbon samples for analysis by gas chromatography. Tulsa, Oklahoma: Gas Processors Association, GPA.
MLA
Gas Processors Association GPA, . Obtaining liquid hydrocarbon samples for analysis by gas chromatography. Tulsa, Oklahoma: Gas Processors Association, GPA. 2000.