Não informado. (1994). Drugs: Education, prevention and policy. Carfax Publishing.
Chicago-referens (17:e uppl.)Não informado. Drugs: Education, Prevention and Policy. Abingdon, Inglaterra: Carfax Publishing, 1994.
MLA-referens (8:e uppl.)Não informado. Drugs: Education, Prevention and Policy. Carfax Publishing, 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.