Não informado. (1994). Drugs: Education, prevention and policy. Carfax Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Drugs: Education, Prevention and Policy. Abingdon, Inglaterra: Carfax Publishing, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Drugs: Education, Prevention and Policy. Carfax Publishing, 1994.
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