Citazione APA

(2005). Selected practice recommendations for contraceptive use (2nd ed.). World Health Organisation.

Stile di citazione Chicago

Selected Practice Recommendations for Contraceptive Use. 2nd ed. Geneva: World Health Organisation, 2005.

Citazione MLA

Selected Practice Recommendations for Contraceptive Use. 2nd ed. World Health Organisation, 2005.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.