کتاب های David Songstad
Biofuels, Solar and Wind as Renewable Energy Systems: Benefits and Risks
David Songstad, Prakash Lakshmanan, John Chen, William Gibbons, Stephen Hughes (auth.), Dwight Tomes, Prakash Lakshmanan, David Songstad (eds.), 2008
Biofuels: Global Impact on Renewable Energy, Production Agriculture, and Technological Advancements
David Songstad, Prakash Lakshmanan, John Chen, William Gibbons, Stephen Hughes (auth.), Dwight Tomes, Prakash Lakshmanan, David Songstad (eds.), 2011
