Cita APA (7a ed.)

(1982). Oral contraceptives: Technical and safety aspects. WHO offset publication.

Cita Chicago Style (17a ed.)

"Oral Contraceptives: Technical and Safety Aspects." WHO Offset Publication 1982.

Cita MLA (8a ed.)

"Oral Contraceptives: Technical and Safety Aspects." WHO Offset Publication, 1982.