Canada. Environment Canada & Canada. Environment Canada. Annual report - Environment Canada: Rapport annuel - Environnement Canada. Environment Canada.
Citazione stile Chigago Style (17a edizione)Canada. Environment Canada e Canada. Environment Canada. Annual Report - Environment Canada: Rapport Annuel - Environnement Canada. Ottawa: Environment Canada.
Citatione MLA (8a ed.)Canada. Environment Canada e Canada. Environment Canada. Annual Report - Environment Canada: Rapport Annuel - Environnement Canada. Environment Canada.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.