APA引文

World Health Organization. Geneva. (1997). Nitrogen Oxides (2nd ed.). WHO.

Chicago Edition Citation

World Health Organization. Geneva. Nitrogen Oxides. 2nd ed. Geneva: WHO, 1997.

MLA引文

World Health Organization. Geneva. Nitrogen Oxides. 2nd ed. WHO, 1997.

警告：這些引文格式不一定是100％准確.