Emmett, D., & Nice, G. (2006). Understanding drug issues: A handbook for parents, teachers and other professionals (2nd ed.). Jessica Kingsley Publishers.
Lua i Stíl Chicago (17ú heag.)Emmett, David, agus Graeme Nice. Understanding Drug Issues: A Handbook for Parents, Teachers and Other Professionals. 2nd ed. London ; Philadelphia: Jessica Kingsley Publishers, 2006.
Lua MLA (9ú heag.)Emmett, David, agus Graeme Nice. Understanding Drug Issues: A Handbook for Parents, Teachers and Other Professionals. 2nd ed. Jessica Kingsley Publishers, 2006.
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