Global Environment Facility. (1993). Global monitoring of greenhouse gases including ozone: Project Document.
Čikaški stil citiranja (17. izdanje)Global Environment Facility. Global Monitoring of Greenhouse Gases Including Ozone: Project Document. 1993.
MLA način citiranja (9. izdanje)Global Environment Facility. Global Monitoring of Greenhouse Gases Including Ozone: Project Document. 1993.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.