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  1. 1
    National trends in drug use and related factors among American high school students and young adults, 1975-1986 /
    by Johnston, Lloyd
    Published 1987
    Government Document Book
  2. 2
    Drug use among American high school seniors, college students, and young adults, 1975-1990 /
    by Johnston, Lloyd
    Published 1991
    Government Document Book
  3. 3
    Illicit drug use, smoking, and drinking by America's high school students, college students, and young adults, 1975-1987 /
    by Johnston, Lloyd
    Published 1989
    Government Document Book
  4. 4
    Smoking, drinking, and illicit drug use among American secondary school students, college students, and young adults, 1975-1991 /
    by Johnston, Lloyd
    Published 1992
    Government Document Book
  5. 5
    Monitoring the future : national survey results on drug use, 1975-1999 /
    by Johnston, Lloyd
    Published 2000
    Government Document Book
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