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Lua i Stíl Chicago (17ú heag.)National Research Council (U.S.). Committee to Assess the North American Research Strategy for Tropospheric Ozone (NARSTO) Program. Review of the NARSTO Draft Report: An Assessment of Tropospheric Ozone Pollution : A North American Perspective. Washington, D.C.: National Academy Press, 2000.
Lua MLA (9ú heag.)National Research Council (U.S.). Committee to Assess the North American Research Strategy for Tropospheric Ozone (NARSTO) Program. Review of the NARSTO Draft Report: An Assessment of Tropospheric Ozone Pollution : A North American Perspective. National Academy Press, 2000.