APA-ийн эшлэл(7 дахь хэвлэлт)
Swift, B. (2001). Cleaner power: The benefits and costs of moving from coal to natural gas power generation. Environmental Law Institute.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Swift, Byron. Cleaner Power: The Benefits and Costs of Moving from Coal to Natural Gas Power Generation. [Washington, D.C.]: Environmental Law Institute, 2001.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Swift, Byron. Cleaner Power: The Benefits and Costs of Moving from Coal to Natural Gas Power Generation. Environmental Law Institute, 2001.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.