APA (7 वां संस्करण) प्रशस्ति पत्र
EUROPEAN CITIES ON DRUG POLICY. (1997). HARM REDUCTION A POLICY THAT COPES WITH REALITY. EUROPEAN CITIES ON DRUG POLICY - ECDP.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
EUROPEAN CITIES ON DRUG POLICY. HARM REDUCTION A POLICY THAT COPES WITH REALITY. FRANKFURT (D): EUROPEAN CITIES ON DRUG POLICY - ECDP, 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
EUROPEAN CITIES ON DRUG POLICY. HARM REDUCTION A POLICY THAT COPES WITH REALITY. EUROPEAN CITIES ON DRUG POLICY - ECDP, 1997.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.