Boeing. (2008). ETOPS explained: An overview of extended operations by Boeing commercial airplanes. Boeing.
Chicago Style (17th ed.) CitationBoeing. ETOPS Explained: An Overview of Extended Operations by Boeing Commercial Airplanes. [Washington]: Boeing, 2008.
MLA (9th ed.) CitationBoeing. ETOPS Explained: An Overview of Extended Operations by Boeing Commercial Airplanes. Boeing, 2008.
Warning: These citations may not always be 100% accurate.