George Washington University. Population Information Program, George Washington University. Dept. of Medical and Public Affairs, & Johns Hopkins University. Population Information Program. Population reports. Population Information Program, The Johns Hopkins University,.
芝加哥风格引文George Washington University. Population Information Program, George Washington University. Dept. of Medical and Public Affairs, 与 Johns Hopkins University. Population Information Program. Population Reports. Baltimore, Md.: Population Information Program, The Johns Hopkins University,.
MLA引文George Washington University. Population Information Program, et al. Population Reports. Population Information Program, The Johns Hopkins University,.
警告：这些引文格式不一定是100％准确.