IPPF. International Planned Parenthood Federation. International Planned Parenthood Federation.
Cita Chicago (17th ed.)IPPF. International Planned Parenthood Federation. EN: International Planned Parenthood Federation.
Cita MLA (9th ed.)IPPF. International Planned Parenthood Federation. International Planned Parenthood Federation.
Atenció: Aquestes cites poden no estar 100% correctes.