Center for Research on Environment Health and Population Activities. (1999). Impact of condom day events in three districts.
芝加哥风格引文Center for Research on Environment Health and Population Activities. Impact of Condom Day Events in Three Districts. 1999.
MLA引文Center for Research on Environment Health and Population Activities. Impact of Condom Day Events in Three Districts. 1999.
警告：这些引文格式不一定是100％准确.