Winfree, L. Thomas, Jr. / Bernat, Frances P. (1998): »Social Learning, Self-Control, and Substance Abuse by Eighth Grade Students: A Tale of Two Cities«. Journal of Drug Issues 28, S. 539-558.
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. (1998). Social Learning, Self-Control, and Substance Abuse by Eighth Grade Students: A Tale of Two Cities«. Journal of Drug Issues, 28 pp. 539-558.
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