(1994). Drugs: Education, prevention & policy. Carfax International Publishers.
Lua i Stíl Chicago (17ú heag.)Drugs: Education, Prevention & Policy. Abingdon, Oxfordshire: Carfax International Publishers, 1994.
Lua MLA (9ú heag.)Drugs: Education, Prevention & Policy. Carfax International Publishers, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.