Cita APA (7th ed.)

World Health Organization. (1987). Guidelines for the toxicological and clinical assessment and post-registration surveillance of steroidal contraceptive drugs (First edition.). World Health Organization.

Cita Chicago (17th ed.)

World Health Organization. Guidelines for the Toxicological and Clinical Assessment and Post-registration Surveillance of Steroidal Contraceptive Drugs. First edition. Geneva: World Health Organization, 1987.

Cita MLA (8th ed.)

World Health Organization. Guidelines for the Toxicological and Clinical Assessment and Post-registration Surveillance of Steroidal Contraceptive Drugs. First edition. World Health Organization, 1987.