Powers, E., & Witmer, H. (1951). An experiment in the prevention of delinquency: The Cambridge-Somerville Youth Study. Columbia University Press.
Citação norma ChicagoPowers, Edwin, and Helen Witmer. An Experiment in the Prevention of Delinquency: The Cambridge-Somerville Youth Study. New York: Columbia University Press, 1951.
Citação norma MLAPowers, Edwin, and Helen Witmer. An Experiment in the Prevention of Delinquency: The Cambridge-Somerville Youth Study. Columbia University Press, 1951.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.