HAM CHANDE, R. Dooghe, G. y Helander, J. (editores). Family Life in Old Age. Netherlands Interuniversity Demographic Institute : y Population and Family Study Center, 1979. Estudios Demográficos y Urbanos, [S. l.], v. 16, n. 04, p. 599–601, 1982. DOI: 10.24201/edu.v16i04.528. Disponível em: https://estudiosdemograficosyurbanos.colmex.mx/index.php/edu/article/view/528. Acesso em: 28 mar. 2024.