Cita APA (7a ed.)

Rootman, I., & Hughes, P. H. (1980). Drug-abuse reporting systems. World Health Organization.

Cita Chicago Style (17a ed.)

Rootman, I., y P. H. Hughes. Drug-abuse Reporting Systems. Geneva: World Health Organization, 1980.

Cita MLA (8a ed.)

Rootman, I., y P. H. Hughes. Drug-abuse Reporting Systems. World Health Organization, 1980.