Western Gas Processors and Oil Refiners Association, California Natural Gasoline Association, & California Natural Gasoline Association. Proceedings. [publisher not identified].
Chicago Style (17th ed.) CitationWestern Gas Processors and Oil Refiners Association, California Natural Gasoline Association, and California Natural Gasoline Association. Proceedings. Los Angeles [etc.]: [publisher not identified].
MLA (9th ed.) CitationWestern Gas Processors and Oil Refiners Association, et al. Proceedings. [publisher not identified].
Warning: These citations may not always be 100% accurate.