Brudon, P. R. (1999). Indicators for monitoring National drug policies (2nd ed.). World Health Organization.
Lua i Stíl Chicago (17ú heag.)Brudon, Pascale Rainhorn. Indicators for Monitoring National Drug Policies. 2nd ed. Geneva: World Health Organization, 1999.
Lua MLA (8ú heag.)Brudon, Pascale Rainhorn. Indicators for Monitoring National Drug Policies. 2nd ed. World Health Organization, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.