We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePeriod, age, and cohort effects on substance use among American youth, 1976-82.AuthorsO'Malley PM; Bachman JG; Johnston LDPublicationAmerican journal of public health, 1984, Vol 74, Issue 7, p682ISSN0090-0036Publication typearticleDOI10.2105/ajph.74.7.682