APA
Gossop M. (., Grant M. (., . (1990). Preventing and controlling drug abuse. Geneva: World Health Organization.
Chicago
Gossop M (Ed.), Grant M (Ed.), . 1990. Preventing and controlling drug abuse. Geneva: World Health Organization.
Harvard
Gossop M. (., Grant M. (., . (1990). Preventing and controlling drug abuse. Geneva: World Health Organization.
MLA
Gossop M (Ed.), Grant M (Ed.), . Preventing and controlling drug abuse. Geneva: World Health Organization. 1990.