Hallmark, F. O., & Wygle, P. R. (1980). Oil and gas well blowout prevention in California (3rd ed.). California Division of Oil & Gas.
Chicago Style (17th ed.) CitationHallmark, Fred O., and Peter R. Wygle. Oil and Gas Well Blowout Prevention in California. 3rd ed. Sacramento: California Division of Oil & Gas, 1980.
MLA (9th ed.) CitationHallmark, Fred O., and Peter R. Wygle. Oil and Gas Well Blowout Prevention in California. 3rd ed. California Division of Oil & Gas, 1980.
Warning: These citations may not always be 100% accurate.