Chemical Safety and Hazard Investigation Board. Hydrogen sulfide exposure.
Citazione stile Chigago Style (17a edizione)Chemical Safety and Hazard Investigation Board. Hydrogen Sulfide Exposure.
Citatione MLA (9a ed.)Chemical Safety and Hazard Investigation Board. Hydrogen Sulfide Exposure.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.