APA
(2001). How to develop and implement a national drug policy. World Health Orgnization, Geneva: .
Chicago
2001. How to develop and implement a national drug policy. World Health Orgnization, Geneva: .
Harvard
(2001). How to develop and implement a national drug policy. World Health Orgnization, Geneva: .
MLA
How to develop and implement a national drug policy. World Health Orgnization, Geneva: . 2001.