U.S. Environmental Protection Agency. Emission estimation protocol for petroleum refineries.
Citazione stile Chigago Style (17a edizione)U.S. Environmental Protection Agency. Emission Estimation Protocol for Petroleum Refineries.
Citatione MLA (9a ed.)U.S. Environmental Protection Agency. Emission Estimation Protocol for Petroleum Refineries.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.