United Nations Centre for Human Settlements. (1990). Developing a national shelter strategy. United Nations Centre for Human Settlements.
芝加哥风格引文United Nations Centre for Human Settlements. Developing a National Shelter Strategy. Nairobi: United Nations Centre for Human Settlements, 1990.
MLA引文United Nations Centre for Human Settlements. Developing a National Shelter Strategy. United Nations Centre for Human Settlements, 1990.
警告：这些引文格式不一定是100％准确.