APA引文

World Federation of United Nations Associations. World population year bulletin. World Federation of United Nations Associations.

Chicago Style (17th ed.) Citation

World Federation of United Nations Associations. World Population Year Bulletin. Geneva: World Federation of United Nations Associations.

MLA引文

World Federation of United Nations Associations. World Population Year Bulletin. World Federation of United Nations Associations.

警告：这些引文格式不一定是100％准确.