APA引文

World Health Organization. (1993). Proceedings of the WHO/UNEP Air Pollution Workshop, Beijjing, 1993. World Health Organization.

Chicago Style (17th ed.) Citation

World Health Organization. Proceedings of the WHO/UNEP Air Pollution Workshop, Beijjing, 1993. Geneva: World Health Organization, 1993.

MLA引文

World Health Organization. Proceedings of the WHO/UNEP Air Pollution Workshop, Beijjing, 1993. World Health Organization, 1993.

警告：這些引文格式不一定是100％准確.