Cita APA (7a ed.)
World Health Organization & ebrary, Inc. (2006). Air quality guidelines: Global update 2005 : particulate matter, ozone, nitrogen dioxide, and sulfur dioxide. World Health Organization.
Cita Chicago Style (17a ed.)
World Health Organization y Inc ebrary. Air Quality Guidelines: Global Update 2005 : Particulate Matter, Ozone, Nitrogen Dioxide, and Sulfur Dioxide. Copenhagen, Denmark: World Health Organization, 2006.
Cita MLA (9a ed.)
World Health Organization y Inc ebrary. Air Quality Guidelines: Global Update 2005 : Particulate Matter, Ozone, Nitrogen Dioxide, and Sulfur Dioxide. World Health Organization, 2006.
Precaución: Estas citas no son 100% exactas.