International Planned Parenthood Federation. (1992). People & the Planet. Planet.
Cita Chicago Style (17a ed.)International Planned Parenthood Federation. People & the Planet. London: Planet, 1992.
Cita MLA (8a ed.)International Planned Parenthood Federation. People & the Planet. Planet, 1992.
Precaución: Estas citas no son 100% exactas.