APA引文

UNEP-GEF. (1999). Pacific Islands Environment Outlook. UNEP.

芝加哥风格引文

UNEP-GEF. Pacific Islands Environment Outlook. Nairobi, Kenya: UNEP, 1999.

MLA引文

UNEP-GEF. Pacific Islands Environment Outlook. UNEP, 1999.

警告：这些引文格式不一定是100％准确.