.Dryfoos, J. G. (1990). Adolescents at risk: Prevalence and prevention. Oxford University Press.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি.Dryfoos, Joy G. Adolescents at Risk: Prevalence and Prevention. New York: Oxford University Press, 1990.
M.L.A (9 ম সংস্করণ) উদ্ধৃতি.Dryfoos, Joy G. Adolescents at Risk: Prevalence and Prevention. Oxford University Press, 1990.