APA引文

(1997). Linkage methods for environment and health analysis. UNEP.

芝加哥风格引文

Linkage Methods for Environment and Health Analysis. Ginebra: UNEP, 1997.

MLA引文

Linkage Methods for Environment and Health Analysis. UNEP, 1997.

警告：这些引文格式不一定是100％准确.