William L. Leffler

• Petroleum refining in nontechnical language
• Oil and Gas Pipelines in Nontechnical Language, 2nd Edition
• Deepwater petroleum exploration & production
• Natural Gas Liquids
• Oil and Gas Pipelines in Nontechnical Language
• Petroleum Refining Chart
• Petroleum refining for the non-technical person
• Petroleum Refining in Nontechnical Language
• Deepwater petroleum exploration and production
• The technology and economic behavior of the U.S. propane industry