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.
Citação do estilo Chicago (17ª ed.)George Washington University. Population Information Program, George Washington University. Dept. of Medical and Public Affairs, e Johns Hopkins University. Population Information Program. Population Reports. Washington, D.C.: Dept. of Medical and Public Affairs, George Washington University Medical Center, 1973.
Citação MLA (8ª ed.)George Washington University. Population Information Program, et al. Population Reports. Dept. of Medical and Public Affairs, George Washington University Medical Center, 1973.