APA引文

World Health Organization. (2000). Air quality guidelines for europe (2nd-ed.). World Health Organization.

Chicago Style (17th ed.) Citation

World Health Organization. Air Quality Guidelines for Europe. 2nd-ed. Copenhagen: World Health Organization, 2000.

MLA引文

World Health Organization. Air Quality Guidelines for Europe. 2nd-ed. World Health Organization, 2000.

警告：這些引文格式不一定是100％准確.