World Health Organization. (1998). Health workers manual on family planning options (Second.). World Health Organization.
Citação norma ChicagoWorld Health Organization. Health Workers Manual on Family Planning Options. Second. Geneva: World Health Organization, 1998.
Citação norma MLAWorld Health Organization. Health Workers Manual on Family Planning Options. Second. World Health Organization, 1998.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.