World Health Organization. (1998). Health workers manual on family planning options (Second.). World Health Organization.
Style de citation Chicago (17e éd.)World Health Organization. Health Workers Manual on Family Planning Options. Second. Geneva: World Health Organization, 1998.
Style de citation MLA (8e éd.)World Health Organization. Health Workers Manual on Family Planning Options. Second. World Health Organization, 1998.
Attention : ces citations peuvent ne pas être correctes à 100%.