United States Environmental Protection Agency. Emission factor documentation for AP-42 , coffee roasting.
Citazione stile Chigago Style (17a edizione)United States Environmental Protection Agency. Emission Factor Documentation for AP-42 , Coffee Roasting.
Citatione MLA (9a ed.)United States Environmental Protection Agency. Emission Factor Documentation for AP-42 , Coffee Roasting.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.