World Health Organization & World Health Organization. (1978). Induced abortion: Report of a WHO Scientific Group. World Health Organization.
芝加哥风格引文World Health Organization 与 World Health Organization. Induced Abortion: Report of a WHO Scientific Group. Geneva: World Health Organization, 1978.
MLA引文World Health Organization 与 World Health Organization. Induced Abortion: Report of a WHO Scientific Group. World Health Organization, 1978.
警告：这些引文格式不一定是100％准确.