Global Environment Facility. (1993). Global monitoring of greenhouse gases including ozone: Project Document.
芝加哥风格引文Global Environment Facility. Global Monitoring of Greenhouse Gases Including Ozone: Project Document. 1993.
MLA引文Global Environment Facility. Global Monitoring of Greenhouse Gases Including Ozone: Project Document. 1993.
警告：这些引文格式不一定是100％准确.