.Dryfoos, J. G. (1990). Adolescents at risk: Prevalence and prevention. Oxford University Press.
Chicagoスタイル(17版)引用形式.Dryfoos, Joy G. Adolescents at Risk: Prevalence and Prevention. New York: Oxford University Press, 1990.
MLA(9版)引用形式.Dryfoos, Joy G. Adolescents at Risk: Prevalence and Prevention. Oxford University Press, 1990.
警告: この引用は必ずしも正確ではありません.