APA aipamena

WHO. (1987). Mechanism of action, safety and efficacy of intrauterine devices. Geneva.

Chicago Style aipamena

WHO. Mechanism of Action, Safety and Efficacy of Intrauterine Devices. Geneva, 1987.

MLA aipamena

WHO. Mechanism of Action, Safety and Efficacy of Intrauterine Devices. Geneva, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.