APA Edition Citation

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 Edition Citation

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

Warning: These citations may not always be 100% accurate.