Bengtson, V. L., Biblarz, T. J., & Roberts, R. E. L. (2002). How families still matter: A longitudinal study of youth in two generations. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Bengtson, Vern L., Timothy J. Biblarz, agus Robert E. L. Roberts. How Families Still Matter: A Longitudinal Study of Youth in Two Generations. Cambridge, UK: Cambridge University Press, 2002.
Lua MLA (9ú heag.)Bengtson, Vern L., et al. How Families Still Matter: A Longitudinal Study of Youth in Two Generations. Cambridge University Press, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.