George Washington University. Population Information Program, George Washington University. Dept. of Medical and Public Affairs, & Johns Hopkins University. Population Information Program. (1973). Population reports. Dept. of Medical and Public Affairs, George Washington University Medical Center.
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. Washington, D.C.: Dept. of Medical and Public Affairs, George Washington University Medical Center, 1973.
MLA引文George Washington University. Population Information Program, et al. Population Reports. Dept. of Medical and Public Affairs, George Washington University Medical Center, 1973.