Emmett, D., & Nice, G. (2006). Understanding drug issues: A handbook for parents, teachers and other professionals (2nd ed.). Jessica Kingsley Publishers.
Cita Chicago (17th ed.)Emmett, David, i Graeme Nice. Understanding Drug Issues: A Handbook for Parents, Teachers and Other Professionals. 2nd ed. London ; Philadelphia: Jessica Kingsley Publishers, 2006.
Cita MLA (9th ed.)Emmett, David, i Graeme Nice. Understanding Drug Issues: A Handbook for Parents, Teachers and Other Professionals. 2nd ed. Jessica Kingsley Publishers, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.