HUGHES, M. Exercise 2: Computing and Graphing Age- and Sex- Specific Vital Rates. TRAILS: Teaching Resources and Innovations Library for Sociology, Washington DC: American Sociological Association., 2010. Disponível em: https://trails.asanet.org/article/view/exercise-2-computing-and-graphing-age-and-sex. Acesso em: 24 apr. 2024.