National Risk Management Research Laboratory (U.S.). (2001). Guide to industrial assessments for pollution prevention and energy efficiency. U.S. Environmental Protection Agency.
Lua i Stíl Chicago (17ú heag.)National Risk Management Research Laboratory (U.S.). Guide to Industrial Assessments for Pollution Prevention and Energy Efficiency. Cincinnati: U.S. Environmental Protection Agency, 2001.
Lua MLA (9ú heag.)National Risk Management Research Laboratory (U.S.). Guide to Industrial Assessments for Pollution Prevention and Energy Efficiency. U.S. Environmental Protection Agency, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.