Butterfield, C. P., Sheng, S., & Oyague, F. (2009). Wind energy's new role in supplying the world's energy: What role will structural health monitoring play? National Renewable Energy Laboratory.
Chicago Style (17th ed.) CitationButterfield, C. P., S. Sheng, and F. Oyague. Wind Energy's New Role in Supplying the World's Energy: What Role Will Structural Health Monitoring Play? Golden, CO: National Renewable Energy Laboratory, 2009.
MLA (8th ed.) CitationButterfield, C. P., et al. Wind Energy's New Role in Supplying the World's Energy: What Role Will Structural Health Monitoring Play? National Renewable Energy Laboratory, 2009.
Warning: These citations may not always be 100% accurate.