From: 1, The Problem of Tobacco Use Among Youth
Reducing Tobacco Use Among Youth: Community Based Approaches (Reference Guide).
Prevention Enhancement Protocols System (PEPS), No. 1.
Center for Substance Abuse Prevention (US).
Rockville (MD): Substance Abuse and Mental Health Services Administration (US); 1997.
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.