World Health Organization. (1998). Health workers manual on family planning options (Second.). World Health Organization.
Citação do estilo Chicago (17ª ed.)World Health Organization. Health Workers Manual on Family Planning Options. Second. Geneva: World Health Organization, 1998.
Citação MLA (8ª ed.)World 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.